Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6179993 | Process for obtaining olefins from residual feedstocks | Noel M. Seimandi, Tony T. Cheng, Willibald Serrand, Mitchell Jacobson, Paul K. Ladwig +2 more | 2001-01-30 | $483,593,000 |
| 5952539 | Dual process for obtaining olefins | Noel M. Seimandi, Tony T. Cheng, Willibald Serrand, Mitchell Jacobson, Paul K. Ladwig +2 more | 1999-09-14 | $169,719,000 |
| 5879535 | Two-stage process for obtaining significant olefin yields from residua feedstocks | Willibald Serrand, Mitchell Jacobson, David G. Hammond | 1999-03-09 | $153,002,000 |
| 5714663 | Process for obtaining significant olefin yields from residua feedstocks | Willibald Serrand, Mitchell Jacobson, Paul K. Ladwig, John F. Pagel, Noel M. Seimandi +1 more | 1998-02-03 | $147,648,000 |