Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5597633 | Transfer adhesive tape | Lothar Titze | 1997-01-28 |
| 5171639 | Method of making a thermocolor ribbon for a thermal printing process | Heinrich Krauter | 1992-12-15 |
| 5158813 | Thermal printing ribbon | Heinrich Krauter | 1992-10-27 |
| 5132139 | Thermal-print ribbon with thermoplastic matrix and method of making same | Albert Schmedes | 1992-07-21 |
| 5118211 | Thermocolor ribbon | Heinrich Krauter | 1992-06-02 |
| 5106217 | Thermocolor ribbon and method of making same | Heinrich Krauter | 1992-04-21 |
| 5019421 | Method of making a thermocolor ribbon for a thermal printing process | Heinrich Krauter | 1991-05-28 |
| 5017428 | Multiple impression thermal transfer ribbon | Heinrich Krauter | 1991-05-21 |
| 5006171 | Ink eradicator for inks containing triaryl methane dyestuffs | Albert Schmedes | 1991-04-09 |
| 4995741 | Thermal print-transfer ribbon | Heinrich Krauter | 1991-02-26 |
| 4938617 | Thermal transfer ribbon with adhesion layer | Heinrich Krauter | 1990-07-03 |
| 4898486 | Thermal transfer ribbon, especially for impressions on rough paper | Heinrich Krauter | 1990-02-06 |
| 4895465 | Thermal transfer ribbon especially for impressions on rough paper | Heinrich Krauter | 1990-01-23 |
| 4820551 | Method for fabricating thermo-inking ribbons for thermo-transfer printing, and thermo-inking ribbon obtained thereby | Heinrich Krauter, Albert Schmedes, Wieland Kuchenreuther | 1989-04-11 |
| 4744685 | Thermal transfer ribbon and method of making same | Rudiger Weiss, Otto Jung | 1988-05-17 |
| 4675063 | Process for manufacturing thermocolor ribbon | Heinrich Krauter, Wieland Kuchenreuther | 1987-06-23 |
| 4592945 | Thermocolor ribbon | Heinrich Krauter, Wieland Kuchenreuther | 1986-06-03 |
| 4296150 | Transparent image marking sheet for projection systems | Franz-Ulrich Schmitt, Karl-Heinz Schrader, Heinke Blutschkau | 1981-10-20 |