
Fan S. Tsang
Supervisory Patent Examiner (ID: 5500, Phone: (571)272-7547 , Office: P/2653 )
| Most Active Art Unit | |
| Art Unit(s) | |
| Total Applications | |
| Issued Applications | |
| Pending Applications | |
| Abandoned Applications |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
| 07/572764 | Public telephone interface and method of operating the same | Aug 26, 1990 | Issued |
| 07/570778 | Response time evaluation unit | Aug 21, 1990 | Issued |
| 07/335923 | Telephonic-interface statistical analysis system | Apr 9, 1989 | Issued |
| 07/006852 | HERBICIDAL COMPOSITION | Jan 26, 1987 | Abandoned |
| 06/061374 | Dielectric isolation method using shallow oxide and polycrystalline silicon utilizing a preliminary etching step | Jul 26, 1979 | Issued |