Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4697497 | Hydraulic amplifier valve assembly | Gunter Leineweber | 1987-10-06 |
| 4638719 | Unbalanced hydraulic amplifier valve assembly | Gunter Leineweber, Heinz Ruhmer | 1987-01-27 |
| 4611633 | Expansion hose for reduction of pressure pulsations | Peter Buchholz, Claus-Peter Schopke | 1986-09-16 |
| 4516470 | Unbalanced hydraulic amplifier valve assembly | Heinz Ruhmer, Gunter Leineweber | 1985-05-14 |
| 4457679 | Vane pump with unilateral bearing | Peter Buchholz | 1984-07-03 |
| 4379423 | Hydraulic amplifier | Gunther Leineweber | 1983-04-12 |
| 4360326 | Oil lubricated vacuum pump including an oil separator disposed adjacent of its suction opening | Peter Buchholz | 1982-11-23 |
| 4231727 | Vacuum producing rotary vane pump with shaft lubrication | Peter Buchholz, Alfred Beier | 1980-11-04 |