Issued Patents All Time
Showing 25 most recent of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8534054 | Method and apparatus for rapidly thawing frozen NOx reductant | David Cook, Furqan Zafar Shaikh, Michael Levin, David Furedy, Evan Kent Dawson +1 more | 2013-09-17 |
| 7971433 | Helical exhaust passage | Furqan Zafar Shaikh, Bryan Christopher Stoll, Sandro Balestrino, Michael Levin | 2011-07-05 |
| 7938107 | Variable stiffness flow control valve | David C. Freeman, Alexander H. Slocum | 2011-05-10 |
| 7930878 | Method and apparatus for rapidly thawing frozen NOx reductant | David Cook, Furqan Zafar Shaikh, Michael Levin, David Furedy, Evan Kent Dawson +1 more | 2011-04-26 |
| 7814745 | Approach for delivering a liquid reductant into an exhaust flow of a fuel burning engine | Michael Levin, Sandro Balestrino, Furqan Zafar Shaikh, Bret Alan Zimmerman, Jeremy Quentin Keller +2 more | 2010-10-19 |
| 7370645 | Variable stiffness flow control valve | David C. Freeman, Alexander H. Slocum | 2008-05-13 |
| 6807958 | Valve assembly and method for controlling flow of gases from an engine crankcase to an engine intake manifold | Allan Joseph Kotwicki, Bryan Christopher Stoll, Furqan Zafar Shaikh, Rodney John Tabaczynski | 2004-10-26 |
| 6711491 | Mass airflow sensor for pulsating oscillating flow systems | Xiaoguo Tang | 2004-03-23 |
| 6679231 | Fuel injector assembly for dry fuels | Timothy J. Potter, William C. Vassell | 2004-01-20 |
| 6640793 | Valve assembly and method for controlling flow of gases from an engine crankcase to an engine intake manifold | Allan Joseph Kotwicki, Bryan Christopher Stoll, Furqan Zafar Shaikh, Rodney John Tabaczynski | 2003-11-04 |
| 6609499 | Gaseous-fuel injection system and method | Xiaoguo Tang, William Francis Stockhausen | 2003-08-26 |
| 6446616 | Vent system for gaseous fueled vehicle | Lowell A. Reams, Robert Jay Natkin | 2002-09-10 |
| 6167856 | Low friction cam shaft | Vemulapalli D. N. Rao, Harry A. Cikanek, Daniel Joseph German | 2001-01-02 |
| 5934236 | Low friction valve train | V. Durga Nageswar Rao, Harry A. Cikanek | 1999-08-10 |
| 5927243 | Internal combustion engine with siamesed cylinder bores and pistons | Harry A. Cikanek, Josef Wandeler, Mark Michael Madin | 1999-07-27 |
| 5695199 | Piston sealing assembly | V. Durga Nageswar Rao, Daniel Joseph German | 1997-12-09 |
| 5671532 | Method of making an engine block using coated cylinder bore liners | V. Durga Nageswar Rao, Robert Alan Rose, David A. Yeager | 1997-09-30 |
| 5566450 | Flexibly making engine block assemblies | V. Durga Nageswar Rao, Robert Alan Rose, David A. Yeager | 1996-10-22 |
| 5482637 | Anti-friction coating composition containing solid lubricants | V. Durga Nageswar Rao, Brian W. Lizotte | 1996-01-09 |
| 5430938 | Method of making and using a piston ring assembly | V. Durga Nageswar Rao | 1995-07-11 |
| 5392692 | Antiblow-by piston and seal construction for high temperature applications | V. Durga Nageswar Rao | 1995-02-28 |
| 5363821 | Thermoset polymer/solid lubricant coating system | V. Durga Nageswar Rao, Brian M. Lizotte | 1994-11-15 |
| 5358753 | Method of making an anti-friction coating on metal by plasma spraying powder having a solid lubricant core and fusable metal shell | V. Durga Nageswar Rao, Robert Alan Rose | 1994-10-25 |
| 5315970 | Metal encapsulated solid lubricant coating system | V. Durga Nageswar Rao, Robert Alan Rose | 1994-05-31 |
| 5313919 | Low friction reciprocating piston assembly | Vemulapalli D. N. Rao, David A. Yeager | 1994-05-24 |