David R. Hulme

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Austin, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for recovering onium hydroxides or onium salts from solutio...
- Patent number 6,207,039
- Issue date Mar 27, 2001
- Sachem, Inc.
- Roger D. Moulton
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for recovering onium hydroxides from solutions containing o...
- Patent number 5,968,338
- Issue date Oct 19, 1999
- Sachem, Inc.
- David R. Hulme
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Synthesis of onium hydroxides from onium salts
- Patent number 5,853,555
- Issue date Dec 29, 1998
- Sachem, Inc.
- Hossein Sharifian
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Process for preparing organic and inorganic hydroxides or alkoxides...
- Patent number 5,575,901
- Issue date Nov 19, 1996
- Sachem, Inc.
- David R. Hulme
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR