Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34228 | Alkaline benzylic ether phenolic resin binders | David R. Armbruster | 1993-04-20 |
| 5089540 | Processes and compositions to enhance the tensile strength of reclaimed sand bonded with alkaline resins | David R. Armbruster, S. Raja Iyer | 1992-02-18 |
| 5021539 | Alkaline benzylic ether phenolic resin binders | David R. Armbruster | 1991-06-04 |
| 4677187 | Furfuryl alcohol-aldehyde resins | David R. Armbruster | 1987-06-30 |