CHEMSTONE CORPORATION

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STRASBURG, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of modifying polymer barrier films
- Patent number 12,116,730
- Issue date Oct 15, 2024
- Chemstone, Inc.
- Jonathan Spender
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Liquid dispersions for acyl halides
- Patent number 12,018,435
- Issue date Jun 25, 2024
- Chemstone, Inc.
- Jonathan Spender
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Polyol fatty acid ester carrier compositions
- Patent number 11,987,935
- Issue date May 21, 2024
- Chemstone, Inc.
- Jonathan Spender
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Dual surfactant digester additive composition and a method for enha...
- Patent number 11,970,816
- Issue date Apr 30, 2024
- Chemstone, Inc.
- Michael M. Blackstone
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Dual surfactant digester additive composition and a method for enha...
- Patent number 11,091,875
- Issue date Aug 17, 2021
- Chemstone, Inc.
- Michael M. Blackstone
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Pulping wood using fatty acid esters of polyoxyalkalene glycols to...
- Patent number 5,501,769
- Issue date Mar 26, 1996
- Chemstone, Inc.
- Michael M. Blackstone
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
Polyol Fatty Acid Ester Carrier Compositions
- Publication number 20240301630
- Publication date Sep 12, 2024
- CHEMSTONE, INC.
- Jonathan Spender
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Dual Surfactant Digester Additive Composition and a Method for Enha...
- Publication number 20210372048
- Publication date Dec 2, 2021
- CHEMSTONE, INC.
- Michael M. Blackstone
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Methods to Reduce Metals Content of Bleached Pulp While Reducing Bl...
- Publication number 20110240239
- Publication date Oct 6, 2011
- CHEMSTONE, INC.
- Michael M. Blackstone
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Trademarklast 30 trademarks

Information Trademark
76331472 - CHEMSTONE
- Serial number 76331472
- Registration number 2604708
- Filing date Oct 30, 2001
- Chemstone, Inc.
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information Trademark
75278027 - OAE
- Serial number 75278027
- Registration number 2150874
- Filing date Apr 21, 1997
- Chemstone, Inc.
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information Trademark
75210804 - KLAYSOFT
- Serial number 75210804
- Registration number 2213335
- Filing date Dec 10, 1996
- Chemstone Corporation
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry