Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5896947 | On board lubrication systems for lubricating top of rail for cars and rail gage side/wheel flange for locomotives | — | 1999-04-27 |
| 5477941 | On-board lubrication system for direct application to curved and tangent railroad track | Shiv Kumar | 1995-12-26 |
| 5388442 | Lubrication and adhesion testing machine | James Cheng | 1995-02-14 |
| 4944539 | Differential creepage control system for optimizing adhesion of locomotives | Shiv Kumar, Dean A. Becker | 1990-07-31 |
| 4936610 | Differential creepage control system for optimizing adhesion of locomotives | Shiv Kumar | 1990-06-26 |
| 4930600 | Intelligent on-board rail lubrication system for curved and tangent track | Shiv Kumar | 1990-06-05 |
| 4781121 | System for enhancing traction and energy efficiency in trains | Shiv Kumar | 1988-11-01 |
| 4664611 | Plaster dispensing apparatus for wallboard structures | — | 1987-05-12 |
| 4657866 | Serum-free, synthetic, completely chemically defined tissue culture media | — | 1987-04-14 |