Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8336254 | Moulded body for improving cultivation conditions for plants | — | 2012-12-25 |
| 7080481 | Method for producing a material with a ground clay and ground rock base that promotes plant growth and the resultant product | — | 2006-07-25 |
| 7000351 | Molded body for improving cultivation conditions for plants | — | 2006-02-21 |
| 5413618 | Method for the production of a peat substitute, installation for implementing said method, drying device, application of said method, and peat substitute produced according to said method | Franz Penningsfeld | 1995-05-09 |
| 5008893 | Tunable semiconductor laser | Markus-Christian Amann, Jochen Heinen, Wolfgang Thulke | 1991-04-16 |
| 4963507 | Method and manufacturing a laser diode with buried active layer | Markus-Christian Amann, Wolfgang Thulke | 1990-10-16 |
| 4819385 | Device for treating the ends of tubular components | Herbert Kramer | 1989-04-11 |
| D278989 | Receptacle for hydroponics | — | 1985-05-28 |
| 4345361 | Tool for joining pipes | — | 1982-08-24 |
| 4270309 | Plant receiving vessel for insertion in a hydroponic vessel | — | 1981-06-02 |