SC

Stephen Chen

EC E-Lead Electronic Co.: 70 patents #1 of 4Top 25%
EN Entigenlogic: 16 patents #14 of 21Top 70%
AM Amazon: 1 patents #10,608 of 19,158Top 60%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Wheaton, IL: #2 of 884 inventorsTop 1%
🗺 Illinois: #199 of 84,256 inventorsTop 1%
Overall (All Time): #16,622 of 4,157,543Top 1%
93
Patents All Time

Issued Patents All Time

Showing 76–93 of 93 patents

Patent #TitleCo-InventorsDate
6100510 Heating unit incorporating a temperature sensor Bruce E. Metz 2000-08-08
5821732 Charger device 1998-10-13
5774054 Synchronous receiving/transmitting departure alarm 1998-06-30
5664012 Hands free device for a portable phone 1997-09-02
5504634 Video tape cassette adapter 1996-04-02
5495519 Control circuit for control of peripheral equipment of wireless communication appliance 1996-02-27
5471530 Retaining rack for a cellular phone permitting handfree use of phone in driving 1995-11-28
5396556 Cellular phone securing device for use inside a vehicle 1995-03-07
5365159 Battery-charger with adjustable contacts 1994-11-15
5365387 Automatic video tape converter 1994-11-15
5357185 Universal battery charger 1994-10-18
5333078 Device to permit use of a camera video tape cassette in conventional video players 1994-07-26
5290643 Battery temperature detecting device for a charger 1994-03-01
5232179 8 mm video tape rewinder 1993-08-03
5218287 Lead battery assembly adapted to be charged by a charger for a nickel-cadmium battery 1993-06-08
5213404 Auxiliary illuminating device of a camera 1993-05-25
5095408 Video camera illuminating adapter 1992-03-10
4994929 Automatic video tape converting device 1991-02-19