Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8345451 | DC to AC converter that generates the sine wave from the pulse width modulated signal | James V. Wernlund, Zachary J. Wernlund, Christian J. Wernlund | 2013-01-01 |
| 6229143 | Ion mobility spectrometer with improved drift region and method for making same | — | 2001-05-08 |
| 5955886 | Microliter-sized ionization device and method | Martin J. Cohen, Robert M. Simac | 1999-09-21 |
| 5457316 | Method and apparatus for the detection and identification of trace gases | Martin J. Cohen, Robert Stimac | 1995-10-10 |
| 5162652 | Method and apparatus for rapid detection of contraband and toxic materials by trace vapor detection using ion mobility spectrometry | Martin J. Cohen, Robert Stimac | 1992-11-10 |