Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6595758 | Method for conveying damp gases by means of a conveyor device and a conveyor device for carrying out said method | Erwin Hauser | 2003-07-22 |
| 6305907 | Process for evacuating a wet gas a treatment device to carry out this process and a suction pump for a treatment device of this type | Erich Becker | 2001-10-23 |
| 6065389 | Diaphragm pump | — | 2000-05-23 |
| 5895208 | Reciprocating piston machine with capillary passages on valves for pressure relief | Erich Becker | 1999-04-20 |
| 5699717 | Diaphragm pump with shaped diaphragm having radially and circumferentially extending ribs | — | 1997-12-23 |
| 5690017 | Diaphragm pump with at least one reciprocating piston and balancing device therefor | — | 1997-11-25 |
| 5533886 | Membrane pump and method of operating the same | Richard Von Der Heyde, Erich Becker | 1996-07-09 |
| 5461966 | Measuring gas pump | Erich Becker | 1995-10-31 |
| 5275541 | Fluid-operated valve for pumps and the like | Erich Becker | 1994-01-04 |
| 5145336 | Diaphragm pump with reinforced diaphragm | Erich Becker | 1992-09-08 |
| 4993925 | Diaphragm pump with noise intercepting insert | Erich Becker | 1991-02-19 |