Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4994139 | Method of manufacturing a light-conducting device | Gijsbertus A. C. M. Spierings, Franciscus J. H. M. Van Der Kruis, Jan Haisma | 1991-02-19 |
| 4617206 | Method of manufacturing a layer of an oxide of an element from group IVa | Jan Haisma, Petrus Heller, Johannes M. M. Pasmans | 1986-10-14 |
| 4272389 | Absorption heat pump work medium consisting of a solution of a fluorochloroalkane in a substituted amino phosphorus oxide | — | 1981-06-09 |