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Matthias Sprehe
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Walsrode, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Esterified cellulose ethers of high molecular weight and homogeneity
Patent number
10,759,873
Issue date
Sep 1, 2020
Dow Global Technologies LLC
Oliver Petermann
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process of preparing an esterified cellulose ether in the presence...
Patent number
10,730,957
Issue date
Aug 4, 2020
Dow Global Technologies LLC
Oliver Petermann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Esterified cellulose ethers of low acetone-insoluble content
Patent number
10,526,421
Issue date
Jan 7, 2020
Oliver Petermann
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Efficient process for preparing an ester of a cellulose ether
Patent number
10,196,461
Issue date
Feb 5, 2019
Dow Global Technologies LLC
Oliver Petermann
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Esterified cellulose ethers of very high molecular weight
Patent number
9,890,220
Issue date
Feb 13, 2018
Dow Global Technologies LLC
Oliver Petermann
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Partially cross-linked esterified cellulose ethers
Patent number
9,745,387
Issue date
Aug 29, 2017
Dow Global Technologies LLC
Meinolf Brackhagen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process for recovering an esterified cellulose ether from a reactio...
Patent number
9,587,037
Issue date
Mar 7, 2017
Dow Global Technologies LLC
Oliver Petermann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Esterified cellulose ethers of low viscosity
Patent number
9,486,532
Issue date
Nov 8, 2016
Dow Global Technologies LLC
Meinolf Brackhagen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process of preparing an ester of a cellulose ether
Patent number
9,453,081
Issue date
Sep 27, 2016
Dow Global Technologies LLC
Matthias Sprehe
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Treatment of polysaccarides with dialdehydes
Patent number
9,187,572
Issue date
Nov 17, 2015
Dow Global Technologies LLC
Alexandra Hild
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method of removing alkylene halogenohydrin from cellulose ether
Patent number
9,156,919
Issue date
Oct 13, 2015
Dow Global Technologies LLC
Richard A. Engelman
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for improved production of alkali cellulose and cellulose d...
Patent number
8,993,747
Issue date
Mar 31, 2015
Dow Global Technologies LLC
Matthias Sprehe
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
IMPROVED METHOD FOR THE PREPARATION OF COLLOIDAL MICROCRYSTALLINE C...
Publication number
20240067759
Publication date
Feb 29, 2024
NUTRITION & BIOSCIENCES USA 1, LLC
Oliver Petermann
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
PROCESS FOR PRODUCING A CROSSLINKED CELLULOSE ETHER
Publication number
20220127381
Publication date
Apr 28, 2022
DOW GLOBAL TECHNOLOGIES LLC
Alexandra Hild
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
PROCESS FOR FRACTIONATING AN ESTERIFIED CELLULOSE ETHER
Publication number
20220056157
Publication date
Feb 24, 2022
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR RECOVERING AN ESTERIFIED CELLULOSE ETHER FROM A REACTIO...
Publication number
20220049022
Publication date
Feb 17, 2022
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process for Recovering an Esterified Cellulose Ether from a Reactio...
Publication number
20210115161
Publication date
Apr 22, 2021
DOW GLOBAL TECHNOLOGIES LLC
Oliver O. Petermann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR RECOVERING AN ESTERIFIED CELLULOSE ETHER FROM A REACTIO...
Publication number
20200131280
Publication date
Apr 30, 2020
DOW GLOBAL TECHNOLOGIES LLC
Oliver O. Petermann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
NOVEL ESTERIFIED CELLULOSE ETHERS OF HIGH MOLECULAR WEIGHT AND HOMO...
Publication number
20190184020
Publication date
Jun 20, 2019
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
NOVEL ESTERIFIED CELLULOSE ETHERS OF LOW VISCOSITY AND HIGH MOLECUL...
Publication number
20180319898
Publication date
Nov 8, 2018
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
NOVEL ESTERIFIED CELLULOSE ETHERS OF VERY HIGH MOLECULAR WEIGHT
Publication number
20180127516
Publication date
May 10, 2018
Oliver Petermann
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
PROCESS FOR FRACTIONATING AN ESTERIFIED CELLULOSE ETHER
Publication number
20180030157
Publication date
Feb 1, 2018
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
EFFICIENT PROCESS FOR PREPARING AN ESTER OF A CELLULOSE ETHER
Publication number
20170355783
Publication date
Dec 14, 2017
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PREPARING AN ESTER OF A CELLULOSE ETHER
Publication number
20170335019
Publication date
Nov 23, 2017
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING A CELLULOSE ETHER ACETATE SUCCINATE
Publication number
20170335018
Publication date
Nov 23, 2017
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
ESTERIFIED CELLULOSE ETHERS OF LOW ACETONE-INSOLUBLE CONTENT
Publication number
20170240654
Publication date
Aug 24, 2017
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
NOVEL ESTERIFIED CELLULOSE ETHERS OF HIGH MOLECULAR WEIGHT AND HOMO...
Publication number
20160347866
Publication date
Dec 1, 2016
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
A PROCESS FOR RECOVERING AN ESTERIFIED CELLULOSE ETHER FROM A REACT...
Publication number
20160222133
Publication date
Aug 4, 2016
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
NOVEL ESTERIFIED CELLULOSE ETHERS OF LOW VISCOSITY
Publication number
20150374831
Publication date
Dec 31, 2015
DOW GLOBAL TECHNOLOGIES LLC
Meinolf Brackhagen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
NOVEL ESTERIFIED CELLULOSE ETHERS OF LOW VISCOSITY AND HIGH MOLECUL...
Publication number
20150368365
Publication date
Dec 24, 2015
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
NOVEL ESTERIFIED CELLULOSE ETHERS OF VERY HIGH MOLECULAR WEIGHT
Publication number
20150368366
Publication date
Dec 24, 2015
DOW GLOBAL TECHNOLOGIES LLC
Oliver PETERMANN
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
PROCESS FOR PREPARING AN ESTER OF A CELLULOSE ETHER IN THE PRESENCE...
Publication number
20150218197
Publication date
Aug 6, 2015
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PROCESS OF PREPARING AN ESTERIFIED CELLULOSE ETHER IN THE PRESENCE...
Publication number
20150218291
Publication date
Aug 6, 2015
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
NOVEL HYDROXYALKYL METHYL CELLULOSE ACETATE SUCCINATES
Publication number
20150218198
Publication date
Aug 6, 2015
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
NOVEL ESTERIFIED CELLULOSE ETHERS OF HIGH MOLECULAR WEIGHT AND HOMO...
Publication number
20150202301
Publication date
Jul 23, 2015
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
PROCESS FOR PREPARING AN ESTER OF A CELLULOSE ETHER IN THE PRESENCE...
Publication number
20150203595
Publication date
Jul 23, 2015
DOW GLOBAL TECHNOLOGIES LLC
Oliver Petermann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PARTIALLY CROSS-LINKED ESTERIFIED CELLULOSE ETHERS
Publication number
20150203597
Publication date
Jul 23, 2015
DOW GLOBAL TECHNOLOGIES LLC
Meinolf Brackhagen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
PROCESS OF PREPARING AN ESTER OF A CELLULOSE ETHER
Publication number
20150031873
Publication date
Jan 29, 2015
DOW GLOBAL TECHNOLOGIES LLC
Matthias Sprehe
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD OF REMOVING ALKYLENE HALOGENOHYDRIN FROM CELLULOSE ETHER
Publication number
20140148591
Publication date
May 29, 2014
Dow Global Technologies LLC
Richard A Engleman
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
TREATMENT OF POLYSACCARIDES WITH DIALDEHYDES
Publication number
20130172290
Publication date
Jul 4, 2013
DOW GLOBAL TECHNOLOGIES LLC
Alexandra Hild
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
CARBOXYMETHYL CELLULOSE WITH IMPROVED PROPERTIES
Publication number
20120040065
Publication date
Feb 16, 2012
Dow Global Technologies Inc.
Roland Adden
A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information
Patent Application
Process for Improved Production of Alkali Cellulose and Cellulose D...
Publication number
20120041187
Publication date
Feb 16, 2012
Matthias Sprehe
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...