Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5649517 | Variable oxygen/nitrogen enriched intake air system for internal combustion engine applications | Ramanujam R. Sekar, Roger L. Cole | 1997-07-22 |
| 5636619 | Method and apparatus for reducing cold-phase emissions by utilizing oxygen-enriched intake air | Ramanujam R. Sekar, Kevin C. Stork | 1997-06-10 |