Issued Patents All Time
Showing 26–50 of 76 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8069661 | Transmission hydraulic control system having an accumulator | Henryk Sowul, Brian W. Whitmarsh | 2011-12-06 |
| 8065930 | Hydraulic actuator for transmissions having reduced noise | Henryk Sowul, Tejinder Singh, Brian W. Whitmarsh, Brian Tooman, Richard A. Pashnik | 2011-11-29 |
| 8056429 | Multi-speed dual clutch transmission with countershaft gearing arrangement | Tejinder Singh, Henryk Sowul | 2011-11-15 |
| 8011261 | Multi-speed transmission with countershaft gearing arrangement | John A. Diemer, Patrick S. Portell, Henryk Sowul | 2011-09-06 |
| 7780567 | Input brake assembly | John A. Diemer, Craig S. Ross, Michael Pohl, Robert Keith Dunlap, Alan G. Holmes | 2010-08-24 |
| 7752934 | Multi speed transmission having a countershaft gearing arrangement | Tejinder Singh, Henryk Sowul | 2010-07-13 |
| 7708080 | Packer | Seth Conaway, Karen Grosser | 2010-05-04 |
| 7703346 | Multi-speed transmission with countershaft gearing | John A. Diemer, Douglas John Dwenger | 2010-04-27 |
| 7665537 | System and method to seal using a swellable material | Dinesh R. Patel, Y. Gil Hilsman, III, Herve Ohmer, Stephane Hiron, Philippe Gambier +9 more | 2010-02-23 |
| 7644639 | Multi-speed transmission with countershaft gearing | John A. Diemer, Patrick S. Portell, Henryk Sowul, Ted T. Selever, Tejinder Singh +1 more | 2010-01-12 |
| 7610825 | Multi-speed transmission with countershaft gearing | Tejinder Singh, Henryk Sowul | 2009-11-03 |
| 7510019 | Forming a metal-to-metal seal in a well | Yanmei Li, Daniel M. Torbett, Andrew T. Werner, Nathan Kathol, Vi Nguy | 2009-03-31 |
| 7473199 | Two-planetary electrically variable transmissions with multiple fixed ratios | Norman K. Bucknor, Tejinder Singh, John A. Diemer, Alan G. Holmes, Joshua E. Lehrmann +1 more | 2009-01-06 |
| 7387586 | Three planetary electrically variable transmissions with mechanical reverse | Madhusudan Raghavan, Tejinder Singh, John A. Diemer, Joel M. Maguire, Norman K. Bucknor +2 more | 2008-06-17 |
| 7347797 | Electro-mechanical transmission with six speed ratios and a method of redesigning a transmission | Henryk Sowul | 2008-03-25 |
| 7325612 | One-trip cut-to-release apparatus and method | Bennie Gill, Reginald Francis | 2008-02-05 |
| 7278941 | Electrically variable transmission with selective fixed ratio operation | Alan G. Holmes, Michael R. Schmidt, Donald Klemen, Henryk Sowul | 2007-10-09 |
| 7261660 | Electrically variable transmission arrangement with transfer gear between gear sets and clutches | Henryk Sowul, Alan G. Holmes, Michael R. Schmidt, Donald Klemen | 2007-08-28 |
| 7261657 | Electrically variable transmission having three interconnected planetary gear sets and fixed input | Norman K. Bucknor, Madhusudan Raghavan | 2007-08-28 |
| 7261658 | Electrically variable transmission having two planetary gear sets with one stationary member and clutched input | Norman K. Bucknor, Madhusudan Raghavan | 2007-08-28 |
| 7261659 | Electrically variable transmission having two planetary gearsets | Madhusudan Raghavan, Norman K. Bucknor | 2007-08-28 |
| 7252612 | Electrically variable transmission having two planetary gear sets with one fixed interconnection and a stationary member | Norman K. Bucknor, Madhusudan Raghavan | 2007-08-07 |
| 7252611 | Electrically variable transmission having two planetary gear sets with one interconnecting member and clutched input | Madhusudan Raghavan, Norman K. Bucknor | 2007-08-07 |
| 7238131 | Electrically variable transmission having three planetary gear sets and three fixed interconnections | Madhusudan Raghavan, Norman K. Bucknor | 2007-07-03 |
| 7238132 | Electrically variable transmission arrangement with transfer gear between motor/generators | Henryk Sowul, Alan G. Holmes, Michael R. Schmidt, Donald Klemen | 2007-07-03 |