Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D506154 | Hand held pressure gauge | David Cowan | 2005-06-14 |
| 6898979 | Automobile air conditioning system hand held pressure measuring device | David Cowan, Saul Trachtenberg | 2005-05-31 |
| 6789581 | Apparatus for sealing, inflating, and repairing tires | David Cowan, Saul Trachtenberg | 2004-09-14 |
| 6698466 | Pressurized container adapter for charging automotive systems | David Cowan, Saul Trachtenberg, Nikolay Nikolayev | 2004-03-02 |
| 6648035 | Pressurized container adapter for charging automotive systems | David Cowan, Saul Trachtenberg, Nikolay Nikolayev | 2003-11-18 |
| 6560335 | Sanitary phone cover | Robert A. Zohn, Robert A. Marks, Joseph Herzog, David Cowan, Allen Bonder | 2003-05-06 |
| 6539988 | Pressurized container adapter for charging automotive systems | David Cowan, Saul Trachtenberg, Nikolay Nikolayev | 2003-04-01 |
| 6283335 | Oil sprayer with hand operated air pump | Michael Young, Wei Young | 2001-09-04 |
| D422901 | Liquid sprayer | Michael Young, Wei Young | 2000-04-18 |