Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9194744 | Transmission quantification of open path FTIR spectra with temperature compensation | Robert Crampton | 2015-11-24 |
| 6542242 | Mapping air contaminants using path-integrated optical remote sensing with a non-overlapping variable path length beam geometry | Ram Hashmonay | 2003-04-01 |
| 4967608 | Test chamber for particle emitters | — | 1990-11-06 |
| 4951172 | Method and apparatus for regulating air ionization | Arnold J. Steinman | 1990-08-21 |
| 4901194 | Method and apparatus for regulating air ionization | Arnold J. Steinman | 1990-02-13 |
| 4827371 | Method and apparatus for ionizing gas with point of use ion flow delivery | — | 1989-05-02 |
| 4809127 | Self-regulating air ionizing apparatus | Arnold J. Steinman, Donald A. Gehlke | 1989-02-28 |
| 4542434 | Method and apparatus for sequenced bipolar air ionization | Scott Gehlke, Arnold J. Steinman | 1985-09-17 |