Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5242617 | Liquid crystal pigment, method of producing and use in coatings | Carl Metzger | 1993-09-07 |
| 5194183 | Thermochromic effect coating | Karl-Heinz Freese, Carl Metzger | 1993-03-16 |
| 5098947 | Waterborne coatings and binder systems for use therein | Carl Metzger, Hartmut Hauefler, Karl-Heinz Freese, Ulrich Orth | 1992-03-24 |