Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6634169 | Method and system for maintaining efficiency of a three-way catalyst | Paul Joseph Andersen, David S. Lafyatis, Raj Rao Rajaram, Andrew Peter Walker | 2003-10-21 |
| 6617276 | Hydrocarbon trap/catalyst for reducing cold-start emissions from internal combustion engines | Paul Joseph Andersen | 2003-09-09 |