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Patents Grants
last 30 patents
Information
Patent Grant
Demulsification additive composition, use thereof, and method of de...
Patent number
11,617,970
Issue date
Apr 4, 2023
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Hydrogen sulfide scavenging additive composition and method of use...
Patent number
11,377,600
Issue date
Jul 5, 2022
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Performance enhancing additive for fuel composition, and method of...
Patent number
11,377,610
Issue date
Jul 5, 2022
Dorf Ketal Chemicals FZE
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Composition for control and inhibition of polymerization of monomer...
Patent number
11,242,303
Issue date
Feb 8, 2022
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Performance enhancing additive for fuel composition, and method of...
Patent number
11,162,041
Issue date
Nov 2, 2021
Dorf Ketal Chemicals FZE
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Fuel additive compositions, and method of use thereof
Patent number
11,149,224
Issue date
Oct 19, 2021
Dorf Ketal Chemicals FZE
Mahesh Subramaniyam
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Demulsification additive composition, use thereof, and method of de...
Patent number
11,083,981
Issue date
Aug 10, 2021
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Additive composition for demulsification of water-in-oil emulsion,...
Patent number
10,815,435
Issue date
Oct 27, 2020
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Effective novel polymeric additive for inhibiting napthenic acid co...
Patent number
10,787,619
Issue date
Sep 29, 2020
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Nitrogen based hydrogen sulfide scavengers and method of use thereof
Patent number
10,711,204
Issue date
Jul 14, 2020
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Amine based hydrogen sulfide scavenging additive compositions of co...
Patent number
10,617,994
Issue date
Apr 14, 2020
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Hydrogen sulfide scavenging additive compositions, and medium compr...
Patent number
10,493,396
Issue date
Dec 3, 2019
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Compositions for control and inhibition of polymerization of vinyl...
Patent number
10,450,246
Issue date
Oct 22, 2019
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Adhesion promoting system, and ink compositions thereof
Patent number
10,316,203
Issue date
Jun 11, 2019
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Additive for inhibiting acid corrosion and method of using the new...
Patent number
9,890,339
Issue date
Feb 13, 2018
Dorf Ketal Chemicals (I) Private Limited
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Effective novel non-polymeric and non-fouling additive for inhibiti...
Patent number
9,777,230
Issue date
Oct 3, 2017
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Amine and nitroxide based additive composition for control and inhi...
Patent number
9,725,649
Issue date
Aug 8, 2017
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Additive composition and method for scavenging hydrogen sulfide in...
Patent number
9,637,691
Issue date
May 2, 2017
Dorf Ketal Chemicals (India) Private Limtied
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Additive composition for control and inhibition of polymerization o...
Patent number
9,598,333
Issue date
Mar 21, 2017
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Additive and method for removal of calcium from crude oils containi...
Patent number
9,434,889
Issue date
Sep 6, 2016
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Amine based additive composition for control and inhibition of poly...
Patent number
9,334,445
Issue date
May 10, 2016
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Composition of quinone methide derivatives and amines for control a...
Patent number
9,234,057
Issue date
Jan 12, 2016
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Additive composition for control and inhibition of polymerization o...
Patent number
9,228,126
Issue date
Jan 5, 2016
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Naphthenic acid corrosion inhibition using new synergetic combinati...
Patent number
9,228,142
Issue date
Jan 5, 2016
Dorf Ketal Chemicals (I) Private Limited
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Amine based additive composition for control and inhibition of poly...
Patent number
9,217,107
Issue date
Dec 22, 2015
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Additive for naphthenic acid corrosion inhibition and method of usi...
Patent number
9,115,319
Issue date
Aug 25, 2015
Dorf Ketal Chemicals (I) Private Limited
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
High temperature naphthenic acid corrosion inhibition using organop...
Patent number
9,090,837
Issue date
Jul 28, 2015
DORF KETAL CHEMICALS (I) PRIVATE LIMITED
Mahesh Subramaniyam
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Composition comprising combination of esters of carboxylic acids fo...
Patent number
9,080,110
Issue date
Jul 14, 2015
Dorf Ketal Chemicals (I) Private Limited
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Additive and method for removal of calcium from crude oils containi...
Patent number
8,840,781
Issue date
Sep 23, 2014
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Method of scavenging hydrogen sulfide from hydrocarbon stream
Patent number
8,778,172
Issue date
Jul 15, 2014
Dorf Ketal Chemicals (I) Private Limited
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Patents Applications
last 30 patents
Information
Patent Application
Performance Enhancing Additive for Fuel Composition, and Method of...
Publication number
20220017832
Publication date
Jan 20, 2022
Dorf Ketal Chemicals FZE
Mahesh SUBRAMANIYAM
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
Demulsification Additive Composition, Use Thereof, and Method of De...
Publication number
20210331088
Publication date
Oct 28, 2021
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
Performance Enhancing Additive for Fuel Composition, and Method of...
Publication number
20210040405
Publication date
Feb 11, 2021
Dorf Ketal Chemicals FZE
Mahesh SUBRAMANIYAM
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
Demulsification Additive Composition, Use Thereof, and Method of De...
Publication number
20200353380
Publication date
Nov 12, 2020
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Fuel Additive Compositions, and Method of Use Thereof
Publication number
20200277538
Publication date
Sep 3, 2020
Dorf Ketal Chemicals FZE
Mahesh SUBRAMANIYAM
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Composition for Control and Inhibition of Polymerization of Monomer...
Publication number
20200010386
Publication date
Jan 9, 2020
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Amine Based Hydrogen Sulfide Scavenging Additive Compositions of Co...
Publication number
20190344213
Publication date
Nov 14, 2019
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
Compositions for Control and Inhibition of Polymerization of Vinyl...
Publication number
20190248718
Publication date
Aug 15, 2019
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Hydrogen Sulfide Scavenging Additive Composition and Method of Use...
Publication number
20190010403
Publication date
Jan 10, 2019
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
Nitrogen Based Hydrogen Sulfide Scavengers and Method of Use Thereof
Publication number
20190002768
Publication date
Jan 3, 2019
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Hydrogen Sulfide Scavenging Additive Compositions, and Medium Compr...
Publication number
20180185782
Publication date
Jul 5, 2018
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Additive Composition for Demulsification of Water-in-Oil Emulsion,...
Publication number
20180163145
Publication date
Jun 14, 2018
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Adhesion Promoting System, and Ink Compositions Thereof
Publication number
20170183517
Publication date
Jun 29, 2017
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh SUBRAMANIYAM
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Effective Novel Non-Polymeric and Non-Fouling Additive for Inhibiti...
Publication number
20160362619
Publication date
Dec 15, 2016
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Additive Composition for Control and Inhibition of Polymerization o...
Publication number
20160083315
Publication date
Mar 24, 2016
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Composition of Quinone Methide Derivatives and Amines for Control a...
Publication number
20150225495
Publication date
Aug 13, 2015
Dorf Ketal Chemicals (India) Private Limited
Mahesh Subramaniyam
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Amine Based Additive Composition for Control and Inhibition of Poly...
Publication number
20140364662
Publication date
Dec 11, 2014
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Amine and Nitroxide Based Additive Composition for Control and Inhi...
Publication number
20140364660
Publication date
Dec 11, 2014
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Additive Composition for Control and Inhibition of Polymerization o...
Publication number
20140350313
Publication date
Nov 27, 2014
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Amine Based Additive Composition for Control and Inhibition of Poly...
Publication number
20140316172
Publication date
Oct 23, 2014
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Additive Composition for Control and Inhibition of Polymerization o...
Publication number
20140200375
Publication date
Jul 17, 2014
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Additive and Method for Removal of Calcium from Crude Oils Containi...
Publication number
20140183102
Publication date
Jul 3, 2014
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
Additive Composition and Method for Scavenging Hydrogen Sulfide in...
Publication number
20130240409
Publication date
Sep 19, 2013
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Additive and Method for Removal of Calcium from Crude Oils Containi...
Publication number
20130233770
Publication date
Sep 12, 2013
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
Method of removing metals from hydrocarbon feedstock using esters o...
Publication number
20130193374
Publication date
Aug 1, 2013
Dorf Ketal Chemicals (I) Private Limited
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
Additive and method for removal of impurities formed due to sulfur...
Publication number
20120285865
Publication date
Nov 15, 2012
DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
Mahesh Subramaniyam
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Method of scavenging hydrogen sulfide from hydrocarbon stream
Publication number
20120055848
Publication date
Mar 8, 2012
DORF KETAL CHEMICALS (I) PRIVATE LIMITED
Mahesh Subramaniyam
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Effective Novel Non-Polymeric and Non-Fouling Additive for Inhibiti...
Publication number
20120045361
Publication date
Feb 23, 2012
DORF KETAL CHEMICALS (I) PRIVATE LIMITED
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
NEW ADDITIVE FOR INHIBITING ACID CORROSION AND METHOD OF USING THE...
Publication number
20110214980
Publication date
Sep 8, 2011
Mahesh Subramaniyam
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
EFFECTIVE NOVEL POLYMERIC ADDITIVE FOR INHIBITING NAPTHENIC ACID CO...
Publication number
20110160405
Publication date
Jun 30, 2011
Dorf Ketal Chemicals (1) Private Limited
Mahesh Subramaniyam
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...