Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876890 | Moisture sensing apparatus and method | Peter K. Coughlin, Donald Allen McLeod, Edith M. Flanigen | 1989-10-31 |
| 4860584 | Composite moisture sensing apparatus and method | Peter K. Coughlin, Donald Allen McLeod, Edith M. Flanigen | 1989-08-29 |
| 4853197 | Crystalline metal aluminophosphates | Stephen T. Wilson | 1989-08-01 |