Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12339220 | Rapid, sensitive hydrogen detector with flow path difference compensation | David D. Nelson, Jr., Joanne H. Shorter, Joseph R. Roscioli | 2025-06-24 |
| 12292428 | Rapid, sensitive hydrogen detector with active hydrogen-derived water vapor signal modulation | David D. Nelson, Jr., Joanne H. Shorter, Joseph R. Roscioli | 2025-05-06 |
| 11802858 | Rapid, sensitive hydrogen detector | David D. Nelson, Jr., Joanne H. Shorter, Joseph R. Roscioli | 2023-10-31 |
| 9857267 | Methods and apparatus for measuring small leaks from carbon dioxide sequestration facilities | David D. Nelson, Jr. | 2018-01-02 |
| 9523666 | Techniques for active passivation | Joseph R. Roscioli, David D. Nelson, Jr. | 2016-12-20 |
| 7275414 | Extractive sampling system and method for measuring one or more molecular species | David D. Nelson, Jr., John Barry McManus, Mark Stuart Zahniser, Charles Eugene Kolb | 2007-10-02 |