Matthias Welker

Person

Hesingue, FR

People

Patents Grantslast 30 patents

Information Patent Grant
Method for transesterification of carboxylic acid esters
- Patent number 12,006,286
- Issue date Jun 11, 2024
- Omya International AG
- Jamal Ftouni
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Surface-treated fillers for polyester films
- Patent number 11,873,388
- Issue date Jan 16, 2024
- Omya International AG
- Michael Knerr
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Treatment of surface-reacted calcium carbonate
- Patent number 11,753,548
- Issue date Sep 12, 2023
- Omya International AG
- Samuel Rentsch
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Surface-reacted calcium carbonate with functional cations
- Patent number 11,718,759
- Issue date Aug 8, 2023
- Omya International AG
- Daniel E. Gerard
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Use of mono-substituted succinic anhydride
- Patent number 11,708,478
- Issue date Jul 25, 2023
- Omya International AG
- Samuel Rentsch
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Use of mono-substituted succinic anhydride
- Patent number 11,505,678
- Issue date Nov 22, 2022
- Omya International AG
- Samuel Rentsch
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for preparing a surface treated filler material product wit...
- Patent number 11,441,037
- Issue date Sep 13, 2022
- ONYA INTERNATIONAL AG
- Francesco Pullega
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Surface-reacted calcium carbonate with functional cations
- Patent number 11,168,219
- Issue date Nov 9, 2021
- Omya International AG
- Daniel E. Gerard
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
O2 scavenging CaCO3 treatment
- Patent number 11,161,088
- Issue date Nov 2, 2021
- Omya International AG
- Samuel Rentsch
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Grant
Surface-modified calcium carbonate as carrier for transition metal-...
- Patent number 10,875,014
- Issue date Dec 29, 2020
- Omya International AG
- Patrick A. C. Gane
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Modified mineral-based filler comprising copper salts
- Patent number 10,689,520
- Issue date Jun 23, 2020
- Omya International AG
- Samuel Rentsch
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Reduced moisture pickup in polyol-containing mineral filler products
- Patent number 10,619,050
- Issue date Apr 14, 2020
- Omya International AG
- Samuel Rentsch
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the deinking of coated paper or paperboard
- Patent number 10,544,544
- Issue date Jan 28, 2020
- Omya International AG
- Patrick A. C. Gane
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Reduced moisture pickup in polyol-containing mineral filler products
- Patent number 9,951,228
- Issue date Apr 24, 2018
- Omya International AG
- Samuel Rentsch
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
PRECIPITATED CALCIUM CARBONATE WITH HIGH BIO-BASED CARBON CONTENT F...
- Publication number 20240409719
- Publication date Dec 12, 2024
- Omya International AG
- Matthias WELKER
- C01 - INORGANIC CHEMISTRY
Information Patent Application
SURFACE-TREATED ULTRAFINE CALCIUM CARBONATE FOR IMPROVING THE MECHA...
- Publication number 20230383097
- Publication date Nov 30, 2023
- Omya International AG
- Samuel RENTSCH
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
KIT COMPRISING SURFACE-TREATED CALCIUM CARBONATE AND A PEROXIDE AGE...
- Publication number 20230365812
- Publication date Nov 16, 2023
- Omya International AG
- Samuel RENTSCH
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
REINFORCED ELASTOMER COMPOSITION
- Publication number 20230279201
- Publication date Sep 7, 2023
- Omya International AG
- Matthias WELKER
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
USE OF A POROUS FILLER FOR REDUCING THE GAS PERMEABILITY OF AN ELAS...
- Publication number 20230235151
- Publication date Jul 27, 2023
- Omya International AG
- Matthias WELKER
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
REINFORCED FLUOROPOLYMER
- Publication number 20230220185
- Publication date Jul 13, 2023
- Omya International AG
- Matthias WELKER
- C01 - INORGANIC CHEMISTRY
Information Patent Application
A COMPOSITION FORMED FROM A CALCIUM OR MAGNESIUM CARBONATE-COMPRISI...
- Publication number 20230220212
- Publication date Jul 13, 2023
- Omya International AG
- Matthias WELKER
- C01 - INORGANIC CHEMISTRY
Information Patent Application
A COMPOSITION FORMED FROM A CALCIUM CARBONATE-COMPRISING MATERIAL A...
- Publication number 20230174741
- Publication date Jun 8, 2023
- Omya International AG
- Matthias WELKER
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
CaCO3 COATED WITH MALEIC ANHYDRIDE GRAFTED POLYETHYLENE AND/OR MALE...
- Publication number 20220325066
- Publication date Oct 13, 2022
- Omya International AG
- Matthias WELKER
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
CALCIUM CARBONATE TREATED WITH FUNCTIONALIZED POLY- AND/OR PERFLUOR...
- Publication number 20220298356
- Publication date Sep 22, 2022
- Omya International AG
- Franck BARADEL
- C01 - INORGANIC CHEMISTRY
Information Patent Application
A SURFACE-TREATED FILLER MATERIAL PRODUCT PROVIDING IMPROVED UV STA...
- Publication number 20220081530
- Publication date Mar 17, 2022
- Omya International AG
- Matthias WELKER
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
SURFACE-REACTED CALCIUM CARBONATE WITH FUNCTIONAL CATIONS
- Publication number 20220025189
- Publication date Jan 27, 2022
- Omya International AG
- Daniel E. GERARD
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
SURFACE-REACTED CALCIUM CARBONATE WITH FUNCTIONAL CATIONS
- Publication number 20220025190
- Publication date Jan 27, 2022
- Omya International AG
- Daniel E. GERARD
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
SURFACE-REACTED CALCIUM CARBONATE WITH FUNCTIONAL CATIONS
- Publication number 20220017753
- Publication date Jan 20, 2022
- OMYA INTERNATIONAL AG
- Daniel E. GERARD
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
SURFACE-TREATED FILLERS FOR POLYESTER FILMS
- Publication number 20210371624
- Publication date Dec 2, 2021
- Omya International AG
- Michael KNERR
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
METHOD FOR TRANSESTERIFICATION OF CARBOXYLIC ACID ESTERS
- Publication number 20210122696
- Publication date Apr 29, 2021
- Omya International AG
- Jamal FTOUNI
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
USE OF MONO-SUBSTITUTED SUCCINIC ANHYDRIDE
- Publication number 20200325302
- Publication date Oct 15, 2020
- Omya International AG
- Samuel Rentsch
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
POST TREATMENT OF SURFACE-REACTED CALCIUM CARBONATE WITH DIFFERENT...
- Publication number 20200291235
- Publication date Sep 17, 2020
- Omya International AG
- Samuel RENTSCH
- C01 - INORGANIC CHEMISTRY
Information Patent Application
PROCESS FOR PREPARING A SURFACE TREATED FILLER MATERIAL PRODUCT WIT...
- Publication number 20200157354
- Publication date May 21, 2020
- Omya International AG
- Francesco PULLEGA
- C01 - INORGANIC CHEMISTRY
Information Patent Application
SURFACE-MODIFIED CALCIUM CARBONATE AS CARRIER FOR TRANSITION METAL-...
- Publication number 20190262807
- Publication date Aug 29, 2019
- Omya International AG
- Patrick A.C. Gane
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
USE OF MONO-SUBSTITUTED SUCCINIC ANHYDRIDE
- Publication number 20190256688
- Publication date Aug 22, 2019
- Omya International AG
- Samuel RENTSCH
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
SURFACE-REACTED CALCIUM CARBONATE WITH FUNCTIONAL CATIONS
- Publication number 20190161619
- Publication date May 30, 2019
- Omya International AG
- Daniel E. GERARD
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
O2 SCAVENGING CaCO3 TREATMENT
- Publication number 20180353930
- Publication date Dec 13, 2018
- Omya International AG
- Samuel Rentsch
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
TREATMENT OF SURFACE-REACTED CALCIUM CARBONATE
- Publication number 20180355183
- Publication date Dec 13, 2018
- Omya International AG
- Samuel RENTSCH
- C01 - INORGANIC CHEMISTRY
Information Patent Application
PROCESS FOR THE DEINKING OF COATED PAPER OR PAPERBOARD
- Publication number 20180258586
- Publication date Sep 13, 2018
- Omya International AG
- Patrick A.C. Gane
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
REDUCED MOISTURE PICKUP IN POLYOL-CONTAINING MINERAL FILLER PRODUCTS
- Publication number 20180201790
- Publication date Jul 19, 2018
- Omya International AG
- Samuel Rentsch
- C01 - INORGANIC CHEMISTRY
Information Patent Application
MODIFIED MINERAL-BASED FILLER COMPRISING COPPER SALTS
- Publication number 20180134898
- Publication date May 17, 2018
- Omya International AG
- Samuel Rentsch
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
REDUCED MOISTURE PICKUP IN POLYOL-CONTAINING MINERAL FILLER PRODUCTS
- Publication number 20170240746
- Publication date Aug 24, 2017
- Omya International AG
- Samuel Rentsch
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Matthias Welker

Person

Patents Grantslast 30 patents

Method for transesterification of carboxylic acid esters

Surface-treated fillers for polyester films

Treatment of surface-reacted calcium carbonate

Surface-reacted calcium carbonate with functional cations

Use of mono-substituted succinic anhydride

Use of mono-substituted succinic anhydride

Process for preparing a surface treated filler material product wit...

Surface-reacted calcium carbonate with functional cations

O2 scavenging CaCO3 treatment

Surface-modified calcium carbonate as carrier for transition metal-...

Modified mineral-based filler comprising copper salts

Reduced moisture pickup in polyol-containing mineral filler products

Process for the deinking of coated paper or paperboard

Reduced moisture pickup in polyol-containing mineral filler products

Patents Applicationslast 30 patents

PRECIPITATED CALCIUM CARBONATE WITH HIGH BIO-BASED CARBON CONTENT F...

SURFACE-TREATED ULTRAFINE CALCIUM CARBONATE FOR IMPROVING THE MECHA...

KIT COMPRISING SURFACE-TREATED CALCIUM CARBONATE AND A PEROXIDE AGE...

REINFORCED ELASTOMER COMPOSITION

USE OF A POROUS FILLER FOR REDUCING THE GAS PERMEABILITY OF AN ELAS...

REINFORCED FLUOROPOLYMER

A COMPOSITION FORMED FROM A CALCIUM OR MAGNESIUM CARBONATE-COMPRISI...

A COMPOSITION FORMED FROM A CALCIUM CARBONATE-COMPRISING MATERIAL A...

CaCO3 COATED WITH MALEIC ANHYDRIDE GRAFTED POLYETHYLENE AND/OR MALE...

CALCIUM CARBONATE TREATED WITH FUNCTIONALIZED POLY- AND/OR PERFLUOR...

A SURFACE-TREATED FILLER MATERIAL PRODUCT PROVIDING IMPROVED UV STA...

SURFACE-REACTED CALCIUM CARBONATE WITH FUNCTIONAL CATIONS

SURFACE-REACTED CALCIUM CARBONATE WITH FUNCTIONAL CATIONS

SURFACE-REACTED CALCIUM CARBONATE WITH FUNCTIONAL CATIONS

SURFACE-TREATED FILLERS FOR POLYESTER FILMS

METHOD FOR TRANSESTERIFICATION OF CARBOXYLIC ACID ESTERS

USE OF MONO-SUBSTITUTED SUCCINIC ANHYDRIDE

POST TREATMENT OF SURFACE-REACTED CALCIUM CARBONATE WITH DIFFERENT...

PROCESS FOR PREPARING A SURFACE TREATED FILLER MATERIAL PRODUCT WIT...

SURFACE-MODIFIED CALCIUM CARBONATE AS CARRIER FOR TRANSITION METAL-...

USE OF MONO-SUBSTITUTED SUCCINIC ANHYDRIDE

SURFACE-REACTED CALCIUM CARBONATE WITH FUNCTIONAL CATIONS

O2 SCAVENGING CaCO3 TREATMENT

TREATMENT OF SURFACE-REACTED CALCIUM CARBONATE

PROCESS FOR THE DEINKING OF COATED PAPER OR PAPERBOARD

REDUCED MOISTURE PICKUP IN POLYOL-CONTAINING MINERAL FILLER PRODUCTS

MODIFIED MINERAL-BASED FILLER COMPRISING COPPER SALTS

REDUCED MOISTURE PICKUP IN POLYOL-CONTAINING MINERAL FILLER PRODUCTS