Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4425811 | Cryogenic pump and air sampler | Johann Chatzipetros | 1984-01-17 |
| 4343413 | Double-wall vessel especially Dewar flasks, with wall spacer | Johann Chatzipetros | 1982-08-10 |
| 4340077 | Method of and apparatus for remotely controlling orifice-opening and orifice-closing operations | Peter Schiffer, Ernst Heinrichs | 1982-07-20 |
| 4337669 | Cryogenic pump and air sampler | Johann Chatzipetros | 1982-07-06 |