Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9638092 | Combustion-powered tool with flexible silicone control check valve operable between a primary combustion chamber and a secondary combustion chamber | — | 2017-05-02 |
| 8925517 | Gas-powered tool motor | — | 2015-01-06 |
| 8714120 | Single component intake/exhaust valve member, fuel distribution system, and cooling system for combustion-powered fastener-driving tool | — | 2014-05-06 |
| 8646671 | Combustion chamber and cooling system for fastener-driving tools | — | 2014-02-11 |
| 8511264 | Fuel supply and combustion chamber systems for fastener-driving tools | — | 2013-08-20 |
| 8347832 | Fuel supply and combustion chamber systems for fastener-driving tools | — | 2013-01-08 |
| 8205582 | Exhaust check valve and piston return system | — | 2012-06-26 |
| 8087394 | Dual-level combustion chamber system, for fastener driving tool, having dual-level rotary valve mechanism incorporated therein | — | 2012-01-03 |
| 7938104 | Fuel evaporator system for vaporizing liquid fuels to be used within combustion-powered devices | — | 2011-05-10 |
| 7770772 | Jet pump cooling system for combustion-powered fastener-driving tools | — | 2010-08-10 |
| 7686005 | Combustion-gas-powered paintball marker | — | 2010-03-30 |
| 7634979 | Combustion-powered linear air motor/compressor | — | 2009-12-22 |
| 6997145 | Recycler for linear motor | — | 2006-02-14 |
| 6966478 | Combustion apparatus having collapsible volume | James E. Doherty, Donald L. Van Erden | 2005-11-22 |
| 6932031 | Scavenging system for intermittent linear motor | — | 2005-08-23 |
| 6912988 | Multiple-front combustion chamber system with a fuel/air management system | — | 2005-07-05 |
| 6892524 | Latching mechanism for combustion chamber plate of a fastener driving tool | Donald L. Van Erden, James E. Doherty | 2005-05-17 |
| 6874452 | Resonant combustion chamber and recycler for linear motors | — | 2005-04-05 |
| 6840033 | Combustion chamber system | — | 2005-01-11 |
| 6755159 | Valve mechanisms for elongated combustion chambers | James E. Doherty, James W. Robinson, Donald L. Van Erden | 2004-06-29 |
| 6647969 | Vapor-separating fuel system utilizing evaporation chamber | — | 2003-11-18 |
| 6634325 | Fuel injection system for linear engines | — | 2003-10-21 |
| 6491002 | Intermittent linear motor | — | 2002-12-10 |
| 5660407 | Auxiliary chain tension system for bicycles | — | 1997-08-26 |
| 5540194 | Reciprocating system | — | 1996-07-30 |