Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5207828 | Temperature-stable pigment-colored plastic compositions, process for producing them and means for conducting the process | Ingrid Ressler, Gerhard Adrian, Donald G. Gray | 1993-05-04 |
| 4433579 | Pressure indicator | — | 1984-02-28 |
| 4424915 | Lid-latching and pressure relieving device for a steam pressure cooker | — | 1984-01-10 |