Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5387751 | Production of olefine oxides | Percy Hayden, Richard Clayton, John R. Ramforth | 1995-02-07 |
| 4226782 | Production of alkylene oxides and catalysts thereof | Percy Hayden, Richard Clayton | 1980-10-07 |