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Patent applications and USPTO patent grants for Koehler; Paul C..The latest application filed is for "method of repairing a damaged well".
Patent | Date |
---|---|
Method of repairing a damaged well Grant 5,909,773 - Koehler , et al. June 8, 1 | 1999-06-08 |
Filter for subterranean wells Grant 5,664,628 - Koehler , et al. September 9, 1 | 1997-09-09 |
Filter assembly and method of making a filter assembly Grant 5,545,323 - Koehler , et al. August 13, 1 | 1996-08-13 |
Method of making a filter assembly Grant 5,395,039 - Koehler , et al. March 7, 1 | 1995-03-07 |
Seamless porous metal article and method of making Grant 4,822,692 - Koehler April 18, 1 | 1989-04-18 |
Porous metal article and method of making Grant 4,562,039 - Koehler December 31, 1 | 1985-12-31 |
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