Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5339674 | Method and apparatus for the transmision of an acoustic signal in a photoacoustic cell | Mads Hammerich | 1994-08-23 |
| 5159411 | Method and apparatus for the detection of a gas using photoacoustic spectroscopy | Mads Hammerich, Ari Olafsson | 1992-10-27 |