DC

David Colvin

GA Gaming Arts: 52 patents #1 of 14Top 8%
ZT Z4 Technologies: 13 patents #1 of 1Top 100%
HA Huls America: 2 patents #5 of 19Top 30%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Las Vegas, NV: #16 of 3,439 inventorsTop 1%
🗺 Nevada: #35 of 8,397 inventorsTop 1%
Overall (All Time): #12,379 of 4,157,543Top 1%
108
Patents All Time

Issued Patents All Time

Showing 76–100 of 108 patents

Patent #TitleCo-InventorsDate
6813718 Computer readable storage medium for securing software to reduce unauthorized use 2004-11-02
6799277 System and method for monitoring software 2004-09-28
6795925 Computer readable storage medium for providing repeated contact with software end-user 2004-09-21
6792549 Method and apparatus for repeated contact of software end-user 2004-09-14
6792548 Method for providing repeated contact with software end-user using authorized administrator 2004-09-14
6785825 Method for securing software to decrease software piracy 2004-08-31
6502195 Computer readable storage medium for providing repeated contact with software end-user 2002-12-31
6484264 Method for providing repeated contact with software end-user using authorized administrator 2002-11-19
6460142 Method and apparatus for repeated contact software end-user 2002-10-01
6446211 Method and apparatus for monitoring software using encryption 2002-09-03
D428004 Electronic device 2000-07-11
D426197 Electronic device 2000-06-06
6044471 Method and apparatus for securing software to reduce unauthorized use 2000-03-28
5626062 Socket and ratchet wrench 1997-05-06
5550299 Method of preparing 1.1-dialkoxycycloalkanes Chitoor S. Subramaniam, Thomas V. John, George W. Bitler 1996-08-27
5401885 Method of preparing ortho esters and 1.1-dialkoxycycloalkanes Chitoor S. Subramaniam, Thomas V. John, George W. Bitler 1995-03-28
5181773 Vehicle occupant restraint belt buckle including illumination 1993-01-26
4977800 Screwdriver blade construction 1990-12-18
D312760 Adjustable socket 1990-12-11
4930378 Wrench opening engagement surface configuration 1990-06-05
4903554 Reversible ratchet wrench with thin head construction 1990-02-27
4787275 Adjustable double-ended box wrench 1988-11-29
4765211 Wrench opening 1988-08-23
4716797 Screwdriver with concave blade 1988-01-05
4663999 Socket including adjustable jaws 1987-05-12