Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11588401 | Method for operating an inverter and inverter for carrying out the method | Richard Grasboeck, Gerald Ritzberger, Stefan Wieser | 2023-02-21 |
| 6227205 | Method for treatment of tobacco fine cut | Uwe-Peter Korner | 2001-05-08 |
| 6089238 | Ultralight coaxial cigarette including a multipart filter | Werner Schneider, Adolf Schluter, Erwin Kausch, Volker Heemann, Ursula Kopke +2 more | 2000-07-18 |
| 6082550 | Cooling and sieve drum for tobacco material | Uwe-Peter Korner | 2000-07-04 |
| 5826590 | Method and plant for treating tobacco stems for the production of cut tobacco | Bernd Spallek, Arno Weiss | 1998-10-27 |
| 5813413 | Method and plant for treating tobacco leaves for the production of cut tobacco | Bernd Spallek, Arno Weiss | 1998-09-29 |
| 5722431 | Method and plant for treating tobacco leaves for the production of cut tobacco | Bernd Spallek, Arno Weiss | 1998-03-03 |
| 5308859 | Composition for preservation of wood and wood-based materials | Rainer Gruening | 1994-05-03 |
| 5303502 | Method and article for the preventive protection of materials against soil-dwelling pests | Michael Pallaske, Hans-Werner Wegen | 1994-04-19 |
| 5248450 | Composition for use an an agent or concentrate for the preservation of wood or wood materials | Luzian Naczinski, Hans-Werner Wegen | 1993-09-28 |
| 5159778 | Method and article for the preventive protection of materials against soil-dwelling pests | Michael Pallaske, Hans-Werner Wegen | 1992-11-03 |
| 5156673 | Composition for preservation of wood and wood-based materials | Rainer Gruning | 1992-10-20 |
| 4935457 | Fiberboard method and composition | Eberhard Osterloff, Detlef Seepe | 1990-06-19 |
| 4824484 | Agent for preserving wood or wood-based materials and method for preparation and use thereof | Detlef Seepe | 1989-04-25 |
| 4750934 | Composition or concentrate for conserving wood and wood materials | Volker Hellwig, Reiner Pospischil, Siegfried Cymorek | 1988-06-14 |
| 4337093 | Wood preserving composition and method of using same | Hubert Koddebusch, Gerswid Poetter, deceased | 1982-06-29 |