Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8526011 | Mobile projection system for scaling and orientation of surfaces surveyed by an optical measuring system | Andreas Gaich | 2013-09-03 |
| 5099017 | N,N'-bis-1,3,5-triazin-6-ylpiperazines, and processes for their preparation | Werner Eberspach, Manfred Lysek | 1992-03-24 |
| 4784981 | Vanadium/phosphorus mixed oxide catalyst, process for its preparaton and its use | Heinz-Jurgen Alpers, Karl Heller | 1988-11-15 |
| 4219388 | Process for the recovery of maleic anhydride from distillation residues | Karl Heller | 1980-08-26 |