Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5275955 | Procedure for establishing the presence of live house-dust mites | Edelbert Bischoff | 1994-01-04 |
| 4666940 | Acaricidal cleaning composition for controlling house dust mites and process of using | Edelbert Bischoff | 1987-05-19 |