Mark Hellums

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Austin, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Polymer grafted support polymers
- Patent number 6,849,688
- Issue date Feb 1, 2005
- Sachem, Inc.
- Mark Hellums
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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
Process for recovering organic hydroxides from waste solutions
- Patent number 5,910,237
- Issue date Jun 8, 1999
- Sachem, Inc.
- Roger D. Moulton
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Process for clarifying metal alkyls
- Patent number 5,618,436
- Issue date Apr 8, 1997
- Condea Vista Company
- L. Ben Decker
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for clarifying alkoxylated alcohols
- Patent number 5,352,842
- Issue date Oct 4, 1994
- Vista Chemical Company
- Upali Weerasooriya
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Polymer grafted support polymers
- Publication number 20030187142
- Publication date Oct 2, 2003
- Mark Hellums
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...