Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5569385 | Food processing effluent rendering process and apparatus | Lynda C. O'Carroll, Colm D. O'Carroll, Marilyn T. Matlock, Roderick D. McLeod | 1996-10-29 |
| 5354428 | Apparatus for the continuous on-site chemical reprocessing of ultrapure liquids | R. Scot Clark, Joe G. Hoffman, John B. Davison, David W. Persichini, Wallace I. Yuan +2 more | 1994-10-11 |
| 5164049 | Method for making ultrapure sulfuric acid | R. Scot Clark, John B. Davison, David W. Persichini, Wallace I. Yuan, Bruce A. Lipisko +2 more | 1992-11-17 |
| 4855023 | Method and apparatus for the continuous on-site chemical reprocessing of ultrapure liquids used in semiconductor wafer cleaning | R. Scot Clark, Joe G. Hoffman, John B. Davison, Allen H. Jones, Jr., David W. Persichini +2 more | 1989-08-08 |
| 4828660 | Method and apparatus for the continuous on-site chemical reprocessing of ultrapure liquids | R. Scot Clark, Joe G. Hoffman, John B. Davison, Allen H. Jones, Jr., David W. Persichini +2 more | 1989-05-09 |