Keith Frederick Briegel

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for production of purified (meth)acrylic acid
- Patent number 8,044,238
- Issue date Oct 25, 2011
- Rohm & Haas Company
- Keith F. Briegel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for production of aqueous (meth)acrylic acid
- Patent number 8,044,237
- Issue date Oct 25, 2011
- Rohm & Haas Company
- Keith F. Briegel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for ammonia recovery
- Patent number 7,537,744
- Issue date May 26, 2009
- Rohm & Haas Company
- Abraham Benderly
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Flow through tube plug
- Patent number 7,252,138
- Issue date Aug 7, 2007
- Rohm & Haas Company
- Larry Junior Burkhalter
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Process for manufacturing high purity methacrylic acid
- Patent number 7,128,813
- Issue date Oct 31, 2006
- Rohm & Haas Company
- Keith Frederick Briegel
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Method for production of purified (meth)acrylic acid
- Publication number 20090299090
- Publication date Dec 3, 2009
- Keith F. Briegel
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for production of aqueous (meth)acrylic acid
- Publication number 20090299095
- Publication date Dec 3, 2009
- Keith F. Briegel
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for manufacturing high purity methacrylic acid
- Publication number 20090084667
- Publication date Apr 2, 2009
- Keith Frederick Briegel
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for manufacturing high purity methacrylic acid
- Publication number 20070015938
- Publication date Jan 18, 2007
- Keith Frederick Briegel
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Flow through tube plug
- Publication number 20060096736
- Publication date May 11, 2006
- Larry Junior Burkhalter
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Process for manufacturing high purity methacrylic acid
- Publication number 20030205451
- Publication date Nov 6, 2003
- Keith Frederick Briegel
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for ammonia recovery
- Publication number 20020146363
- Publication date Oct 10, 2002
- Abraham Benderly
- C01 - INORGANIC CHEMISTRY