Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4564464 | Hectorite based paint spray booth detackifying slurries and methods of use thereof | William L. Harpel, Deborah L. Purnell | 1986-01-14 |
| 4504395 | Paint spray booth detackification composition and method | William L. Harpel | 1985-03-12 |
| 4366194 | Rendering porous structures impermeable by treatment with pH insensitive gelable compositions of amide polymers and composition | Thomas W. Regulski | 1982-12-28 |
| 4291069 | Rendering porous structures impermeable by treatment with gellable amine polymers | — | 1981-09-22 |
| 4199625 | Rendering porous structures impermeable by treatment with pH insensitive gelable compositions of amide polymers | Thomas W. Regulski | 1980-04-22 |