Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9343906 | High dynamic DC-voltage controller for photovoltaic inverter | — | 2016-05-17 |
| 8272071 | Blindfold for aquatic games | — | 2012-09-25 |
| 5562513 | Buoyancy compensator device with backpack and adjustable harness | — | 1996-10-08 |
| D359165 | Tape gun belt | — | 1995-06-13 |
| 5346419 | Buoyancy compensator device with backpack and adjustable harness | — | 1994-09-13 |
| 4981383 | Device for screwing a writing instrument tip into a writing fluid reservoir | Gerald Grotsch | 1991-01-01 |
| 4938620 | Writing point or tracing element | Peter Weiss | 1990-07-03 |
| 4809023 | Automatic pencil device for automatic drafting and writing machines | Engelbert Brunner | 1989-02-28 |
| 4391972 | Continuous removal of residual hydrocarbons from polyolefins | Alexander Ohorodnik | 1983-07-05 |
| 4319409 | Apparatus for drying chlorinated polymers | Manfred Scholz | 1982-03-16 |
| 4266949 | Degassing column | Bernhard Kuxdorf, Kurt Wissel | 1981-05-12 |
| 4260847 | Process and apparatus for the continuous removal of residual hydrocarbons from polyolefins | Robert Willms, Bernhard Kuxdorf | 1981-04-07 |
| 4241514 | Process and apparatus for drying chlorinated polymers | Manfred Scholz | 1980-12-30 |