Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7561268 | Evaporative light scattering detector | Stephen J. O'Donohue, Nathan Wrench | 2009-07-14 |
| 6122055 | ELSD diffuser | Stephen J. O'Donohue, Frank P Warner, Nathan Wrench | 2000-09-19 |
| 4815067 | Optical rotary headwheel tape recording system | Elizabeth A. Webster, John Christopher Newell, Brian Baker | 1989-03-21 |
| 4557743 | Method of and apparatus for monitoring the redox state of elements in glass | Christian Dauby, Camille Dupont, Luc Van Cangh | 1985-12-10 |
| 4242400 | Magnetically structured materials | Andrew L. Smith | 1980-12-30 |