Prasse; Herbert F.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Prasse; Herbert F..The latest application filed is for "resilient plastic piston ring".
- Prasse; Herbert F. - Town and Country MO
- Prasse; Herbert F. - Ballwin MO
- Prasse; Herbert F. - St. Louis MO
| Patent | Date |
|---|---|
| Resilient plastic piston ring Grant RE31,005 - Prasse , et al. August 3, 1 | 1982-08-03 |
| Method of making a rolled metal piston ring Grant 4,085,490 - McCormick , et al. April 25, 1 | 1978-04-25 |
| Piston and resilient plastic piston ring combination Grant 3,921,988 - Prasse , et al. November 25, 1 | 1975-11-25 |
| Sealing Element For Use In Internal Combustion Engines Grant 3,814,447 - Prasse , et al. June 4, 1 | 1974-06-04 |
| Piston Ring Facings Grant 3,794,334 - Prasse , et al. February 26, 1 | 1974-02-26 |
| Coated Nervous Substrate Grant 3,725,017 - Prasse , et al. April 3, 1 | 1973-04-03 |
| Combination Circumferential Expansion And Spring Finger Oil Control Piston Ring Grant 3,628,800 - Prasse December 21, 1 | 1971-12-21 |
| A Method Of Making Antifriction Piston Rings Grant 3,617,349 - Prasse November 2, 1 | 1971-11-02 |
| Circumferentially Expanding Oil Control Ring Grant 3,580,589 - Prasse , et al. May 25, 1 | 1971-05-25 |
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