ES

Edwin K. Shenk

PO Polaroid: 24 patents #13 of 898Top 2%
Overall (All Time): #176,097 of 4,157,543Top 5%
24
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5774626 Programmable dual-phase digital motor control with sliding proportionality 1998-06-30
5676019 Nut assembly using partial nuts to limit harmonic error Christopher P. Ricci 1997-10-14
5526255 True zoom capability on a spot scanning electronic printer 1996-06-11
5483202 Compensated phase locked loop for generating a controlled output clock signal 1996-01-09
4894794 System for providing continous linear interpolation 1990-01-16
4663667 Contrast control circuit 1987-05-05
4531822 Extended sonic acceptance angle 1985-07-30
4490814 Sonic autofocus camera having variable sonic beamwidth 1984-12-25
4440482 Sonic autofocus camera having variable sonic beamwidth 1984-04-03
RE31362 Autofocus movie camera having pulsed terminal drive means 1983-08-30
4396268 Dual burst, wide range sonar system 1983-08-02
RE31219 Automatic focusing camera 1983-04-26
4348089 Lens movement actuated reference and sequencing means for cameras having unidirectional automatic focusing 1982-09-07
4336987 Camera employing zone focusing 1982-06-29
4317624 Strobe camera having range correlated scanning blade endoding 1982-03-02
4309098 Autofocus cine camera having automatic variable speed focusing 1982-01-05
4294531 Auto-focus movie camera 1981-10-13
4239354 Autofocus movie camera having improved focus response 1980-12-16
4238143 Autofocus movie camera having pulsed terminal drive means 1980-12-09
4238154 Camera having too close/too far indication Conrad H. Biber 1980-12-09
4227790 Auto/manual focus control mode selector 1980-10-14
4200378 Automatic focusing camera with lens jam sensor control 1980-04-29
4199244 Automatic focusing camera 1980-04-22
4182563 Focus control system for interchangeable adjustable focus lenses Conrad H. Biber, Shirley Y. Tam 1980-01-08