Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9478118 | Hand hygiene complicance confirmation system | Sam Keown, Eric Laster, Richard J. Melker, Henry Wohltjen, Ronald Youngblood | 2016-10-25 |
| 7449050 | System, apparatus and method for concentrating chemical vapors | Henry Wohltjen | 2008-11-11 |