Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4407339 | Double-walled hollow rod of flexible tubular material | Richard Lenhart, Klaus Bittner | 1983-10-04 |
| 4325413 | Supporting sheath for a longitudinally shirred packaging tube | Richard Lenhart, Gunter Gerigk, Klaus Bittner | 1982-04-20 |
| 4273551 | Double-walled hollow rod of flexible tubular material | Richard Lenhart, Klaus Bittner | 1981-06-16 |
| 4263942 | Net-like tubular support sheathing for rod made up of a lengthwise shirred casing | Richard Lenhart, Horst Hellbauer | 1981-04-28 |