Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4707948 | Float lapping fixture | Abbott M. Schindler | 1987-11-24 |
| 4660330 | Bevel tool | — | 1987-04-28 |
| 4625393 | Methods of attaching back-bar to slider | — | 1986-12-02 |
| 4615721 | Glass bonding fixture | — | 1986-10-07 |
| 4540423 | Methods of fashioning glass bonded device | — | 1985-09-10 |
| 4518940 | Back-bar attachment and associated fixture | — | 1985-05-21 |
| 4405734 | Process for mass coloring thermoplastic plastics | Adolf Kroh, Wolfgang Teige | 1983-09-20 |
| 4405793 | 1,3,4-Oxadiazoles | Klaus Hunger, Dieter Weber, Reinhard Zunker | 1983-09-20 |
| 4400515 | Quinacridone mixtures, process for their manufacture and their use as pigments | Adolf Kroh | 1983-08-23 |
| 4312807 | Monoazo compounds, process for their manufacture and their use | — | 1982-01-26 |
| 4277397 | Monoazo compounds deriving from 5-amino-benzimidazole-2-one-6-carboxylic acid | — | 1981-07-07 |
| 4217307 | Process for the preparation of 2,2'-dichloro-hydrazobenzene | Siegfried Planker, Konrad Baessler | 1980-08-12 |
| 4217265 | Pigment preparations | Erwin Dietz, Robert Gutbrod, Adolf Kroh, Michael Maikowski | 1980-08-12 |
| 4212975 | Process for the manufacture of the gamma-crystal modification of linear trans-quinacridone | Adolf Kroh, Ernst Spietschka | 1980-07-15 |