Pfaltzgraff; James R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Pfaltzgraff; James R..The latest application filed is for "aerodynamic trimmer head for use in flexible line rotary trimmers".
- Pfaltzgraff; James R. - Portland OR
- Pfaltzgraff; James R. - Beaverton OR
| Patent | Date |
|---|---|
| Aerodynamic trimmer head for use in flexible line rotary trimmers Grant 9,295,195 - Proulx , et al. March 29, 2 | 2016-03-29 |
| Aerodynamic Trimmer Head For Use In Flexible Line Rotary Trimmers App 20150107120 - Proulx; Richard A. ; et al. | 2015-04-23 |
| Aerodynamic Trimmer Head For Use In Flexible Line Rotary Trimmers App 20150096178 - Proulx; Richard A. ; et al. | 2015-04-09 |
| Aerodynamic trimmer head for use in flexible line rotary trimmers Grant 8,918,999 - Proulx , et al. December 30, 2 | 2014-12-30 |
| Trimmer head spool for use in flexible line rotary trimmer heads having improved line loading mechanism Grant 8,510,960 - Pfaltzgraff , et al. August 20, 2 | 2013-08-20 |
| Aerodynamic Trimmer Head For Use In Flexible Line Rotary Trimmers App 20110302791 - Proulx; Richard A. ; et al. | 2011-12-15 |
| Vegetation cutting device Grant 7,979,991 - Pfaltzgraff July 19, 2 | 2011-07-19 |
| Trimmer Head Spool For Use In Flexible Line Rotary Trimmer Heads Having Improved Line Loading Mechanism App 20110119932 - Pfaltzgraff; James R. ; et al. | 2011-05-26 |
| Vegetation Cutting Device App 20100064530 - Pfaltzgraff; James R. | 2010-03-18 |
| Vegetation cutting device Grant 7,607,232 - Pfaltzgraff October 27, 2 | 2009-10-27 |
| Vegetation cutting device App 20050262705 - Pfaltzgraff, James R. | 2005-12-01 |
| Vegetation cutting device Grant 6,952,877 - Pfaltzgraff October 11, 2 | 2005-10-11 |
| Vegetation cutting device App 20040134078 - Pfaltzgraff, James R. | 2004-07-15 |
| Method and apparatus for tipping saw blades Grant 5,040,436 - Pfaltzgraff August 20, 1 | 1991-08-20 |
| Method and apparatus for grinding saw teeth Grant 4,819,515 - Pfaltzgraff April 11, 1 | 1989-04-11 |
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