Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5242756 | Polyester film having improved adhesion properties | Peter Dinter, Theo Grosse-Kreul, John D. Gribbin | 1993-09-07 |
| 5045347 | Reclaimable polyester film having adhesion-promoting coating | John D. Gribbin, Hermann Dallmann, Dieter Engel | 1991-09-03 |
| 5032458 | Polyester film | Hermann Dallmann, Werner Schaefer, Wolfgang Gawrisch | 1991-07-16 |
| 4942088 | Reclaimable polyester film having adhesion-promoting coating | John D. Gribbin, Hermann Dallmann, Dieter Engel | 1990-07-17 |
| 4919104 | Reciprocating machine | Oliver Laing, Karsten Laing | 1990-04-24 |
| 4801640 | Polyester film having improved abrasion resistance manufactured from particle-filled polyester having nucleating agent dispersed therein | Hermann Dallmann, Werner Schaefer, Wolfgang Gawrisch | 1989-01-31 |
| 4798759 | Multi-layer polyester film for magnetic tape | Hermann Dallman, Werner Schafer | 1989-01-17 |
| 4751139 | Biaxially oriented film having high scratch and abrasion resistance | Hermann Dallmann, Werner Schaefer | 1988-06-14 |
| 4687699 | Abrasion-resistant, copolyester carrier film for magnetic information media | Hermann Dallmann | 1987-08-18 |
| 4687700 | Abrasion-resistant polyester carrier film for magnetic information media | Hermann Dallmann | 1987-08-18 |
| 4606976 | Substantially scratch-free polyester multilayer film | Helmut Monzer | 1986-08-19 |
| 4460631 | Sealable, biaxially stretched polypropylene film having high scratch resistance, and process for its manufacture | Gerhard Stegmeier, Siegfried Janocha | 1984-07-17 |
| 4367511 | Rough electrical insulating film of polypropylene and process for the manufacture thereof | Gunther Crass | 1983-01-04 |