Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9493728 | Microparticles and method of making microparticles | Peter Rabke, Hans-Jurgen Huppert | 2016-11-15 |
| 7548684 | Air treatment apparatus and refill pack | Hans-Jurgen Huppert | 2009-06-16 |
| 4824827 | Time-color indicators | Petrina M. Kelly | 1989-04-25 |
| 4747880 | Dry, granular maintenance product reconstitutable to an aqueous clean and shine product | Alfred E. Kilsdonk | 1988-05-31 |