Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663473 | Hydrocarbon conversion process | David Griffiths, Keith W. Palmer | 1997-09-02 |
| 5625111 | Process for the production of mono-olefins | Christopher J. Astbury, David Griffiths | 1997-04-29 |