Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5252212 | Spray forming polymer membranes, coatings and films | Kevin M. McHugh, Lloyd D. Watson, Scott A. Ploger | 1993-10-12 |
| 4749489 | Polyphosphazene semipermeable membranes | Charles A. Allen, Robert R. McCaffrey, Daniel Cummings, Alan E. Grey, Janine S. Jessup | 1988-06-07 |
| 4306879 | Chemical logging of geothermal wells | Charles A. Allen | 1981-12-22 |