Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE30740 | Insecticidal composition for ultra low volume application | Heinz Frensch, Norbert Taubel | 1981-09-08 |
| RE30700 | Insecticidal compositions for ultra low volume application | Heinz Frensch, Klaus-Detlev Bock | 1981-08-04 |
| 4244836 | Process for manufacturing microcapsules of polyvinyl alcohol with liquid water-insoluble content | Heinz Frensch, Rudolf Heinrich | 1981-01-13 |
| 4230809 | Pressure-resistant polyurethane-polyurea particles for the encapsulation of active ingredients and process for their manufacture | Rudolf Heinrich, Heinz Frensch | 1980-10-28 |