Richard W. Farmer

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Gibsonia, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Filter for purifying domestic drinking water
- Patent number 6,475,386
- Issue date Nov 5, 2002
- Calgon Carbon Corporation
- Charles Joseph Carr
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method for the manufacture of N-phosphonomethylglycine from N-phosp...
- Patent number 5,942,643
- Issue date Aug 24, 1999
- Calgon Carbon Corporation
- Richard W. Farmer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Activated carbon treated by carbon dioxide for the stabilization of...
- Patent number 5,876,607
- Issue date Mar 2, 1999
- Calgon Carbon Corporation
- Richard W. Farmer
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Activated carbon treated by carbon dioxide for the stabilization of...
- Patent number 5,714,433
- Issue date Feb 3, 1998
- Calgon Carbon Corporation
- Richard W. Farmer
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Oxidized activated carbon for the control of pH and alkalinity in w...
- Patent number 5,466,378
- Issue date Nov 14, 1995
- Calgon Carbon Corporation
- Bertrand W. Dussert
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE