Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11976581 | Evaporative fuel vapor emission control systems | Laurence H. Hiltzik, James R. Miller, Roger S. Williams | 2024-05-07 |
| 11846221 | Evaporative fuel vapor emission control systems | Laurence H. Hiltzik, James R. Miller, Roger S. Williams | 2023-12-19 |
| 11536178 | Evaporative fuel vapor emission control systems | Laurence H. Hiltzik, James R. Miller, Roger S. Williams | 2022-12-27 |
| 11506097 | Evaporative fuel vapor emission control systems | Laurence H. Hiltzik, James R. Miller, Roger S. Williams | 2022-11-22 |
| 11448109 | Evaporative fuel vapor emission control systems | Laurence H. Hiltzik, James R. Miller, Roger S. Williams | 2022-09-20 |
| 11286823 | Evaporative fuel vapor emission control systems | Laurence H. Hiltzik, James R. Miller, Roger S. Williams | 2022-03-29 |
| 10960342 | Evaporative fuel vapor emission control systems | Laurence H. Hiltzik, James R. Miller, Roger S. Williams | 2021-03-30 |
| 10422261 | Evaporative fuel vapor emission control systems | Laurence H. Hiltzik, James R. Miller, Roger S. Williams | 2019-09-24 |
| 10323553 | Evaporative fuel vapor emission control systems | Laurence H. Hiltzik, James R. Miller, Roger S. Williams | 2019-06-18 |
| 10280820 | Evaporative fuel vapor emission control systems | Laurence H. Hiltzik, James R. Miller, Roger S. Williams | 2019-05-07 |
| 9732649 | Evaporative fuel vapor emission control systems | Laurence H. Hiltzik, James R. Miller, Roger S. Williams | 2017-08-15 |
| 8814987 | Method and system for reducing emissions from evaporative emissions | Michael F. Tschantz | 2014-08-26 |
| 6696384 | Method of making shaped activated carbon | Tiejun Zhang, David R. Walker | 2004-02-24 |
| 6573212 | Method of making shaped activated carbon | Tiejun Zhang, David R. Walker | 2003-06-03 |
| 6472343 | Shaped activated carbon | Tiejun Zhang, David R. Walker | 2002-10-29 |