of polycarboxylic acids

Industry

CPC
C10M129/72

This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

CCHEMISTRY METALLURGY C10Petroleum, gas C10MLUBRICATING COMPOSITIONS USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION C10M129/00Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen

Current Industry

C10M129/72of polycarboxylic acids

Industries

Please log in for detailed analytics

Patents Grantslast 30 patents

Information Patent Grant
Low ash lubricating compositions for controlling steel corrosion
- Patent number 12,146,115
- Issue date Nov 19, 2024
- Afton Chemical Corporation
- Kenneth Garelick
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Transmission fluid compositions for hybrid and electric vehicle app...
- Patent number 11,905,488
- Issue date Feb 20, 2024
- Infineum International Limited
- Matthew Cunningham
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Lubricant additive, lubricant additive composition, and lubricating...
- Patent number 11,739,283
- Issue date Aug 29, 2023
- NOF Corporation
- Yutaro Shimizu
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Lubricating oil composition
- Patent number 11,680,223
- Issue date Jun 20, 2023
- ENEOS Corporation
- Hideo Tsuneoka
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Macromolecular corrosion (McIn) inhibitors: structures, methods of...
- Patent number 11,578,285
- Issue date Feb 14, 2023
- Polnox Corporation
- Ashok L. Cholli
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Anaerobic lubricant sealant
- Patent number 11,459,519
- Issue date Oct 4, 2022
- HENKEL AG & CO, KGaA
- Roger Grismala
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Liquid octylated phenyl-α-naphthylamine composition
- Patent number 11,339,345
- Issue date May 24, 2022
- Vanderbilt Chemicals, LLC
- Vincent J. Gatto
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Coolant for composite materials
- Patent number 11,299,691
- Issue date Apr 12, 2022
- RHENUS LUB GMBH & CO KG
- Anna Lena Demmerling
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Anti-wear composition for lubricants
- Patent number 11,286,441
- Issue date Mar 29, 2022
- Lanxess Corporation
- Frank J. DeBlase
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Metalworking oil composition and metalworking method
- Patent number 11,214,751
- Issue date Jan 4, 2022
- Idemitsu Kosan Co., Ltd.
- Naoki Nagase
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Lubricant for a device
- Patent number 11,198,831
- Issue date Dec 14, 2021
- KVI LLC
- Alan Thomas Barker
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Lubricant and method of preparing the same
- Patent number 11,136,527
- Issue date Oct 5, 2021
- HENAN UNIVERSITY
- Yujuan Zhang
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Use of esters in a lubricant composition for improving cleanliness...
- Patent number 11,136,521
- Issue date Oct 5, 2021
- Total Marketing Services
- Modestino De Feo
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Lubricant composition for a speed reducer, and speed reducer
- Patent number 11,053,451
- Issue date Jul 6, 2021
- Kyodo Yushi Co., Ltd.
- Ko Tanimura
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Lubricant base oil for power transmission
- Patent number 10,947,472
- Issue date Mar 16, 2021
- New Japan Chemical Co., Ltd.
- Akinobu Takegami
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Grease composition for constant velocity joints, and constant veloc...
- Patent number 10,829,714
- Issue date Nov 10, 2020
- JXTG NIPPON OIL & ENERGY CORPORATION
- Takashi Arai
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Electric compressor, and refrigeration air-conditioning apparatus
- Patent number 10,662,934
- Issue date May 26, 2020
- HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.
- Ryou Oota
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Thermocleavable friction modifiers and methods thereof
- Patent number 10,640,725
- Issue date May 5, 2020
- Rutgers, The State University of New Jersey
- Kathryn Uhrich
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Surfactant mixtures
- Patent number 10,590,262
- Issue date Mar 17, 2020
- Merck Patent GmbH
- Joerg Pahnke
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Fluid with polyalkylene glycol and unsaturated ester
- Patent number 10,577,557
- Issue date Mar 3, 2020
- Dow Global Technologies LLC
- Martin R. Greaves
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Corrosion inhibitors for fuels and lubricants
- Patent number 10,377,958
- Issue date Aug 13, 2019
- BASF SE
- Jochen Mezger
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Low viscosity low volatility lubricating oil base stocks and method...
- Patent number 10,316,265
- Issue date Jun 11, 2019
- ExxonMobil Research and Engineering Company
- Man Kit Ng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Maleinated derivatives
- Patent number 10,294,210
- Issue date May 21, 2019
- Elevance Renewable Sciences, Inc.
- Stephen A. Di Biase
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Refrigerating-machine oil composition and working fluid composition...
- Patent number 10,266,788
- Issue date Apr 23, 2019
- KH Neochem Co., Ltd.
- Satoshi Hiyoshi
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Compositions comprising estolide compounds and methods of making an...
- Patent number 10,240,025
- Issue date Mar 26, 2019
- Biosynthetic Technologies, LLC
- Jeremy Forest
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Corrosion inhibitors for fuels and lubricants
- Patent number 10,240,100
- Issue date Mar 26, 2019
- BASF SE
- Jochen Mezger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Lubricating composition with seals compatibility
- Patent number 10,196,580
- Issue date Feb 5, 2019
- The Lubrizol Corporation
- Yanshi Zhang
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Polymers as additives for fuels and lubricants
- Patent number 10,150,927
- Issue date Dec 11, 2018
- BASF SE
- Jochen Mezger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Branched diesters and methods of making and using the same
- Patent number 10,125,337
- Issue date Nov 13, 2018
- Trent University
- Suresh Narine
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Use of polyesters as lubricants
- Patent number 10,119,092
- Issue date Nov 6, 2018
- BASF SE
- Markus Scherer
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents

Information Patent Application
LUBRICATING OIL COMPOSITION FOR HYBRID VEHICLES
- Publication number 20240409838
- Publication date Dec 12, 2024
- CHEVRON JAPAN LTD.
- Hisanari ONOUCHI
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
HIGH PERFORMANCE GEAR OIL AND RELATED METHODS
- Publication number 20240368495
- Publication date Nov 7, 2024
- ExxonMobil Technology and Engineering Company
- Harrison T. HAWKINS
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
REFRIGERATOR OIL COMPOSITION AND MIXED COMPOSITION FOR REFRIGERATOR
- Publication number 20240309285
- Publication date Sep 19, 2024
- Idemitsu Kosan Co.,Ltd
- Tomoya MATSUMOTO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
MULTIPURPOSE OXYPYRIDINONES AND THEIR FUNCTIONAL USE-3
- Publication number 20240294841
- Publication date Sep 5, 2024
- INFINEUM INTERNATIONAL LIMITED
- DAVID R. COULTAS
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
LOW ASH LUBRICATING COMPOSITIONS FOR CONTROLLING STEEL CORROSION
- Publication number 20240199969
- Publication date Jun 20, 2024
- AFTON CHEMICAL CORPORATION
- Kenneth Garelick
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
GREASE COMPOSITION AND SEALING DEVICE USING SAME
- Publication number 20240166966
- Publication date May 23, 2024
- Uchiyama Manufacturing Corp.
- Masanori SHIBAYAMA
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
THERMALLY STABLE, LOW TRACTION COEFFICIENT LUBRICANT
- Publication number 20240150669
- Publication date May 9, 2024
- The Lubrizol Corporation
- Patricia Standen
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
MACROMOLECULAR CORROSION (MCIN) INHIBITORS: STRUCTURES, METHODS OF...
- Publication number 20230159841
- Publication date May 25, 2023
- Polnox Corporation
- Ashok L. Cholli
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Application
USE OF ESTER BASE STOCKS TO IMPROVE VISCOSITY INDEX AND EFFICIENCY...
- Publication number 20230002697
- Publication date Jan 5, 2023
- The Lubrizol Corporation
- Kamalakumari K. Salem
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
SOLVENCY ENHANCER COMPOSITIONS, METHODS OF PREPARATION AND METHODS...
- Publication number 20220243141
- Publication date Aug 4, 2022
- Fluitec International, LLC
- Cristian A. Soto
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
LUBRICATING OIL COMPOSITION
- Publication number 20220177804
- Publication date Jun 9, 2022
- ENEOS Corporation
- Hideo TSUNEOKA
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
LUBRICANT ADDITIVE, LUBRICANT ADDITIVE COMPOSITION, AND LUBRICATING...
- Publication number 20220154096
- Publication date May 19, 2022
- NOF Corporation
- Yutaro Shimizu
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Transmission Fluid Compositions for Hybrid and Electric Vehicle App...
- Publication number 20220119727
- Publication date Apr 21, 2022
- lnfineum International Limited
- Matthew Cunningham
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
COMPOSITIONS COMPRISING ESTOLIDE COMPOUNDS AND METHODS OF MAKING AN...
- Publication number 20210347962
- Publication date Nov 11, 2021
- BIOSYNTHETIC TECHNOLOGIES, LLC
- Jakob Bredsguard
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
LIQUID OCTYLATED PHENYL-ALPHA-NAPHTHYLAMINE COMPOSITION
- Publication number 20210269733
- Publication date Sep 2, 2021
- VANDERBILT CHEMICALS, LLC
- Vincent J. GATTO
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
MACROMOLECULAR CORROSION (MCIN) INHIBITORS: STRUCTURES, METHODS OF...
- Publication number 20210130722
- Publication date May 6, 2021
- Polnox Corporation
- Ashok L. Cholli
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Application
LUBRICANT COMPOSITION FOR A SPEED REDUCER, AND SPEED REDUCER
- Publication number 20210087491
- Publication date Mar 25, 2021
- Kyodo Yushi Co., Ltd.
- Ko TANIMURA
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Anti-Wear Composition for Lubricants
- Publication number 20210040411
- Publication date Feb 11, 2021
- LANXESS Solutions US Inc.
- Frank J. DeBlase
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
USE OF ESTERS IN A LUBRICANT COMPOSITION FOR IMPROVING CLEANLINESS...
- Publication number 20200270542
- Publication date Aug 27, 2020
- TOTAL MARKETING SERVICES
- Modestino DE FEO
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
LUBRICANT FOR A DEVICE
- Publication number 20200248092
- Publication date Aug 6, 2020
- KVI LLC
- Alan Thomas Barker
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
LUBRICANT AND METHOD OF PREPARING THE SAME
- Publication number 20200080019
- Publication date Mar 12, 2020
- Henan University
- Yujuan ZHANG
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
ANAEROBIC LUBRICANT SEALANT
- Publication number 20190322957
- Publication date Oct 24, 2019
- Henkel IP & Holding GmbH
- Roger GRISMALA
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
COMPOSITIONS COMPRISING ESTOLIDE COMPOUNDS AND METHODS OF MAKING AN...
- Publication number 20190292350
- Publication date Sep 26, 2019
- BIOSYNTHETIC TECHNOLOGIES, LLC
- Jakob BREDSGUARD
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Maleinated Derivatives
- Publication number 20190284152
- Publication date Sep 19, 2019
- ELEVANCE RENEWABLE SCIENCES, INC.
- Stephen A. Di Biase
- C07 - ORGANIC CHEMISTRY
Information Patent Application
LUBRICANT BASE OIL FOR POWER TRANSMISSION
- Publication number 20190249103
- Publication date Aug 15, 2019
- New Japan Chemical Co., Ltd.
- Akinobu Takegami
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
METALWORKING OIL COMPOSITION AND METALWORKING METHOD
- Publication number 20190225908
- Publication date Jul 25, 2019
- IDEMITSU KOSAN CO., LTD.
- Naoki NAGASE
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
GREASE COMPOSITION FOR CONSTANT VELOCITY JOINTS, AND CONSTANT VELOC...
- Publication number 20190177644
- Publication date Jun 13, 2019
- JXTG NIPPON OIL & ENERGY CORPORATION
- Takashi ARAI
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Fluids for Extreme Pressure and Wear Applications
- Publication number 20190031974
- Publication date Jan 31, 2019
- Materials Engineering and Technical Support Services Corp., dba METSS Corpora...
- William F. Ricks
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
METHOD FOR IMPROVING DEPOSIT CONTROL AND CLEANLINESS PERFORMANCE IN...
- Publication number 20190031975
- Publication date Jan 31, 2019
- ExxonMobil Research and Engineering Company
- Michael L. BLUMENFELD
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
BRANCHED DIESTERS FOR USE TO REDUCE THE FUEL CONSUMPTION OF AN ENGINE
- Publication number 20190002790
- Publication date Jan 3, 2019
- TOTAL MARKETING SERVICES
- Julien SANSON
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

of polycarboxylic acids

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Low ash lubricating compositions for controlling steel corrosion

Transmission fluid compositions for hybrid and electric vehicle app...

Lubricant additive, lubricant additive composition, and lubricating...

Lubricating oil composition

Macromolecular corrosion (McIn) inhibitors: structures, methods of...

Anaerobic lubricant sealant

Liquid octylated phenyl-α-naphthylamine composition

Coolant for composite materials

Anti-wear composition for lubricants

Metalworking oil composition and metalworking method

Lubricant for a device

Lubricant and method of preparing the same

Use of esters in a lubricant composition for improving cleanliness...

Lubricant composition for a speed reducer, and speed reducer

Lubricant base oil for power transmission

Grease composition for constant velocity joints, and constant veloc...

Electric compressor, and refrigeration air-conditioning apparatus

Thermocleavable friction modifiers and methods thereof

Surfactant mixtures

Fluid with polyalkylene glycol and unsaturated ester

Corrosion inhibitors for fuels and lubricants

Low viscosity low volatility lubricating oil base stocks and method...

Maleinated derivatives

Refrigerating-machine oil composition and working fluid composition...

Compositions comprising estolide compounds and methods of making an...

Corrosion inhibitors for fuels and lubricants

Lubricating composition with seals compatibility

Polymers as additives for fuels and lubricants

Branched diesters and methods of making and using the same

Use of polyesters as lubricants

Patents Applicationslast 30 patents

LUBRICATING OIL COMPOSITION FOR HYBRID VEHICLES

HIGH PERFORMANCE GEAR OIL AND RELATED METHODS

REFRIGERATOR OIL COMPOSITION AND MIXED COMPOSITION FOR REFRIGERATOR

MULTIPURPOSE OXYPYRIDINONES AND THEIR FUNCTIONAL USE-3

LOW ASH LUBRICATING COMPOSITIONS FOR CONTROLLING STEEL CORROSION

GREASE COMPOSITION AND SEALING DEVICE USING SAME

THERMALLY STABLE, LOW TRACTION COEFFICIENT LUBRICANT

MACROMOLECULAR CORROSION (MCIN) INHIBITORS: STRUCTURES, METHODS OF...

USE OF ESTER BASE STOCKS TO IMPROVE VISCOSITY INDEX AND EFFICIENCY...

SOLVENCY ENHANCER COMPOSITIONS, METHODS OF PREPARATION AND METHODS...

LUBRICATING OIL COMPOSITION

LUBRICANT ADDITIVE, LUBRICANT ADDITIVE COMPOSITION, AND LUBRICATING...

Transmission Fluid Compositions for Hybrid and Electric Vehicle App...

COMPOSITIONS COMPRISING ESTOLIDE COMPOUNDS AND METHODS OF MAKING AN...

LIQUID OCTYLATED PHENYL-ALPHA-NAPHTHYLAMINE COMPOSITION

MACROMOLECULAR CORROSION (MCIN) INHIBITORS: STRUCTURES, METHODS OF...

LUBRICANT COMPOSITION FOR A SPEED REDUCER, AND SPEED REDUCER

Anti-Wear Composition for Lubricants

USE OF ESTERS IN A LUBRICANT COMPOSITION FOR IMPROVING CLEANLINESS...

LUBRICANT FOR A DEVICE

LUBRICANT AND METHOD OF PREPARING THE SAME

ANAEROBIC LUBRICANT SEALANT

COMPOSITIONS COMPRISING ESTOLIDE COMPOUNDS AND METHODS OF MAKING AN...

Maleinated Derivatives

LUBRICANT BASE OIL FOR POWER TRANSMISSION

METALWORKING OIL COMPOSITION AND METALWORKING METHOD

GREASE COMPOSITION FOR CONSTANT VELOCITY JOINTS, AND CONSTANT VELOC...

Fluids for Extreme Pressure and Wear Applications

METHOD FOR IMPROVING DEPOSIT CONTROL AND CLEANLINESS PERFORMANCE IN...

BRANCHED DIESTERS FOR USE TO REDUCE THE FUEL CONSUMPTION OF AN ENGINE