Brenny; David M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Brenny; David M..The latest application filed is for "tie plugging machine and method".
- Brenny; David M. - Eagle WI
| Patent | Date |
|---|---|
| Tie plugging machine and method Grant 9,617,692 - Brenny , et al. April 11, 2 | 2017-04-11 |
| Tie Plugging Machine And Method App 20150101504 - Brenny; David M. ; et al. | 2015-04-16 |
| Anchor cribber Grant 8,844,445 - Brenny , et al. September 30, 2 | 2014-09-30 |
| Anchor Cribber App 20130125775 - Brenny; David M. ; et al. | 2013-05-23 |
| Tie plate inserting machine Grant 7,658,152 - Brenny , et al. February 9, 2 | 2010-02-09 |
| Tie Plate Inserting Machine App 20070283837 - Brenny; David M. ; et al. | 2007-12-13 |
| Mechanism and method for removing and/or applying transversely applied elastic rail clips Grant 6,138,573 - Brenny , et al. October 31, 2 | 2000-10-31 |
| Apparatus and method for applying and removing transversely applied elastic rail clips Grant 5,839,377 - Brenny , et al. November 24, 1 | 1998-11-24 |
| Rail saw power head with two cycle engine and lube oil metering system Grant 5,829,395 - Brenny , et al. November 3, 1 | 1998-11-03 |
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