Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7581549 | Method for removing carbon-containing residues from a substrate | Andrew David Johnson, Hoshang Subawalla, Bing Ji, Raymond Nicholas Vrtis, Eugene Joseph Karwacki, Jr. +4 more | 2009-09-01 |
| 7485580 | Method for removing organic electroluminescent residues from a substrate | Andrew David Johnson, Mark Sistern, Martin J. Plishka, Steven Rogers, John B. Dickenson | 2009-02-03 |
| 6686594 | On-line UV-Visible light halogen gas analyzer for semiconductor processing effluent monitoring | Bing Ji, Robert Gordon Ridgeway, Eugene Joseph Karwacki, Jr., Howard Paul Withers, Jr., Steven Rogers +1 more | 2004-02-03 |
| 5661225 | Dynamic dilution system | Robert Gordon Ridgeway, Richard Vincent Pearce, Seksan Dheandhanoo, Suhas Narayan Ketkar | 1997-08-26 |
| 5360467 | Method of separating and detecting impurities using a fractional concentration detector | Suhas Narayan Ketkar, Robert Gordon Ridgeway, Timothy Christopher Golden | 1994-11-01 |
| 5034193 | Automated preparative gas chromatograph | Patrick J. Clark, Victoria J. Morris, Robert A. Byerley, John F. Booker | 1991-07-23 |
| 5006315 | Automated preparative gas chromatograph | Patrick J. Clark, Victoria J. Morris, Robert A. Byerley, John F. Booker | 1991-04-09 |
| 4747854 | Selective chromatographic process using an ion-exchanged, dehydrated chabazite adsorbent | Charles G. Coe, Steven M. Kuznicki, David A. Roberts | 1988-05-31 |
| 4744805 | Selective adsorption process using an oxidized ion-exchanged dehydrated chabizite adsorbent | Charles G. Coe, Steven M. Kuznicki, Patrick J. Clark, David A. Roberts | 1988-05-17 |
| 4713362 | Selective zeolitic adsorbent and a method for activation thereof | Charles G. Coe, Steven M. Kuznicki, Patrick J. Clark, David A. Roberts | 1987-12-15 |