Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5188753 | Detergent composition containing coated perfume particles | Diane G. Schmidt, Howard J. Buttery | 1993-02-23 |
| 5154842 | Coated perfume particles | Darlene R. Walley, Howard J. Buttery, Diane G. Scmidt, William R. Michael | 1992-10-13 |
| 5137646 | Coated perfume particles in fabric softener or antistatic agents | Diane G. Schmidt, Howard J. Buttery | 1992-08-11 |
| 5066419 | Coated perfume particles | Darlene R. Walley, Howard J. Buttery, Diane G. Schmidt, William R. Michael | 1991-11-19 |
| 5013473 | Encapsulated cosmetic materials and process of making | Robert W. H. Chang, Lowell C. Zeller | 1991-05-07 |
| 4976961 | Encapsulated cosmetic materials and process of making | Robert W. H. Chang | 1990-12-11 |