Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6769565 | Dispensing cartridge and system | Paul Francis Tramontina, Jan Byron Charles Spencer, Leonard Wesley Smith, Jr. | 2004-08-03 |
| 6147246 | Process for preparing alkoxylated dialkyl carbonate compounds | Upali P. Weerasooriya, K. Lee Matheson, Dewey L. Smith, Paul A. Filler, Elida G. Partain +1 more | 2000-11-14 |
| 6020509 | Method for producing surfactant compositions | Upali P. Weerasooriya, Paul A. Filler | 2000-02-01 |
| 5498753 | Process for preparing isethionate ethoxylates | Upali P. Weerasooriya, John Wei-Ping Lin | 1996-03-12 |
| 5488148 | Process for sulfonating internal olefins | Upali P. Weerasooriya, John Wei-Ping Lin, K. Lee Matheson, Donald Robertson, LeAnn M. Rowe | 1996-01-30 |