Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4962238 | Removal of glycols from a polyalkylene glycol dialkyl ether solution | Dennis P. Maloney, Robert E. Steele, Constantine Tsonopoulos, Eugene R. Thomas | 1990-10-09 | $35,978,000 |
| 4853002 | Process for removing hydrogen sulfide from waste water | Joseph L. Niedzwiecki | 1989-08-01 | $23,668,000 |