Stiffler; Stephen P.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Stiffler; Stephen P..The latest application filed is for "cutting tool with water injection to the cutting bit shank".
- Stiffler; Stephen P. - New Enterprise PA
| Patent | Date |
|---|---|
| Road milling drum having an adjustable width Grant 7,883,153 - Stiffler , et al. February 8, 2 | 2011-02-08 |
| Cutting tool with water injection to the cutting bit shank Grant 7,883,154 - Beach , et al. February 8, 2 | 2011-02-08 |
| Cutting Tool With Water Injection To The Cutting Bit Shank App 20100052406 - Beach; Wayne H. ; et al. | 2010-03-04 |
| Overlapping pedestals for supporting a block secured to a rotating drum Grant 7,547,074 - Beach , et al. June 16, 2 | 2009-06-16 |
| Road milling drum having an adjustable width App 20090067927 - Stiffler; Stephen P. ; et al. | 2009-03-12 |
| Edge cutter assembly for use with a rotatable drum Grant 7,475,949 - Helsel , et al. January 13, 2 | 2009-01-13 |
| Overlapping Pedestals For Supporting A Block Secured To A Rotating Drum App 20080164749 - Beach; Wayne H. ; et al. | 2008-07-10 |
| Edge cutter assembly for use with a rotatable drum App 20080111418 - Helsel; Eric P. ; et al. | 2008-05-15 |
| Embossed washer Grant 6,824,225 - Stiffler November 30, 2 | 2004-11-30 |
| Drum mounting plate for cutting tool holder block Grant 6,764,140 - Carson, Jr. , et al. July 20, 2 | 2004-07-20 |
| Drum mounting plate for cutting tool holder block App 20030184145 - Carson, Duane E. JR. ; et al. | 2003-10-02 |
| Embossed washer App 20030047985 - Stiffler, Stephen P. | 2003-03-13 |
| Cutting tool retainer Grant 6,070,945 - Ritchey , et al. June 6, 2 | 2000-06-06 |
| Rotatable cutting bit insert Grant 5,219,209 - Prizzi , et al. June 15, 1 | 1993-06-15 |
| Cemented carbide tip Grant 5,141,289 - Stiffler * August 25, 1 | 1992-08-25 |
| Rotatable cutting tool having an insert with flanges Grant 5,131,725 - Rowlett , et al. July 21, 1 | 1992-07-21 |
| Digging tooth Grant 5,067,262 - Stiffler , et al. November 26, 1 | 1991-11-26 |
| Rotatable tool having a carbide insert with bumps Grant 4,981,328 - Stiffler , et al. January 1, 1 | 1991-01-01 |
| Cemented carbide tip Grant 4,941,711 - Stiffler July 17, 1 | 1990-07-17 |
| Earth engaging cutter bit Grant 4,940,288 - Stiffler , et al. * July 10, 1 | 1990-07-10 |
| Excavating tooth for an earth auger Grant 4,917,196 - Stiffler , et al. April 17, 1 | 1990-04-17 |
| Cutter bit and tip Grant 4,911,504 - Stiffler , et al. March 27, 1 | 1990-03-27 |
| Earth engaging cutter bit Grant 4,911,503 - Stiffler , et al. March 27, 1 | 1990-03-27 |
| Butterfly-type shim having semi-opened bottom and double sandwich braze joint produced therewith Grant 4,817,743 - Greenfield , et al. April 4, 1 | 1989-04-04 |
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