Michael H. Hoff

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Invert well service fluid and method
- Patent number 6,562,764
- Issue date May 13, 2003
- R. Ashley Donaldson
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Oil-free water-soluble hydroxyethyl cellulose liquid polymer disper...
- Patent number 5,985,801
- Issue date Nov 16, 1999
- Baroid Technology, Inc.
- Michael H. Hoff
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Dispersible hydrophilic polymer compositions for use in viscosifyin...
- Patent number 4,758,357
- Issue date Jul 19, 1988
- NL Industries, Inc.
- Michael H. Hoff
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Defoamers for aqueous liquids containing soluble zinc salts
- Patent number 4,394,273
- Issue date Jul 19, 1983
- NL Industries, Inc.
- Michael H. Hoff
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...