Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5844070 | Process for rapid activation of double metal cyanide catalysts | John E. Hayes, Leah Langsdorf, Fred J. Armellini | 1998-12-01 |
| 5792829 | Polyurethane elastomers exhibiting improved demold, green strength, and water absorption, and haze-free polyols suitable for their preparation | Gary L. Allen, Nigel Barksby, Leah Langsdorf, Stephen D. Seneker | 1998-08-11 |
| 5002658 | Water purification device and method | — | 1991-03-26 |
| 4598057 | Regeneration of soluble molybdenum catalysts from spent catalyst streams | — | 1986-07-01 |
| 4590172 | Preparation of soluble molybdenum catalysts for epoxidation of olefins | — | 1986-05-20 |