Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871382 | Air separation process using packed columns for oxygen and argon recovery | Robert M. Thorogood, Douglas L. Bennett, Rodney John Allam, Alan L. Prentice | 1989-10-03 |
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Bruce K. Dawson
Overall (1989): #128,579 of 140,708Top 95%
1
Patents 1989