Stelk; John C.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Stelk; John C..The latest application filed is for "hammermill hammer with pin-hole insert".
- Stelk; John C. - Davenport IA
- Stelk; John C. - Bettendorf IA
- Stelk; John C. - Betendorf IA
| Patent | Date |
|---|---|
| Hammermill hammer with pin-hole insert Grant 7,757,979 - Stelk July 20, 2 | 2010-07-20 |
| Hammermill Hammer With Pin-hole Insert App 20090250539 - Stelk; John C. | 2009-10-08 |
| Offset disc hammer assembly for a hammermill App 20060226269 - Stelk; John C. | 2006-10-12 |
| Metal shredder hammer Grant D426,556 - Bradley , et al. June 13, 2 | 2000-06-13 |
| Heavy duty disc-spider assembly for a hammermill Grant 5,141,167 - Stelk August 25, 1 | 1992-08-25 |
| Symmetrical protective cap for a rotary hammer assembly for a hammermill Grant 5,072,888 - Stelk December 17, 1 | 1991-12-17 |
| Heavy duty spider assembly for a hammermill Grant 5,022,593 - Stelk June 11, 1 | 1991-06-11 |
| Replaceable end cap assembly for the spider arm of a hammermill Grant 4,915,310 - Stelk April 10, 1 | 1990-04-10 |
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