Inventor

David R. Dowe

Inventor

Holley, NY, US

Overview

34→

Patents

1987–2012

Patent span

Physics

Primary field (CPC G)

Patents· 34 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Bprimary

G03BApparatus or arrangements for taking photographs or for projecting or viewing them51%

G02BOptical elements, systems or apparatus10%

H02JElectric power networks8%

B42DBooks4%

G09BEducational or demonstration appliances4%

H04NPictorial communication, e.g. television4%

H05BElectric heating4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

F21VFunctional features or details of lighting devices or systems thereof2%

H01HElectric switches2%

PatentTitleYear

8,162,483'Hierarchical light intensity control in light projector'2012 7,187,858'Camera and method for operating a camera based upon available power in a supply'2007 7,049,760'Camera flash circuit using a piezoelectric transformer to trigger firing of the camera flash tube'2006 6,443,637'Camera with electrostatic light valve that functions as diaphragm'2002 6,325,554'Camera with electrostatic light valve that functions as image reflecting mirror for viewfinder'2001 6,313,937'Electrically actuated magnetic micro-shutters'2001 6,295,416'One time use camera uses magnetic micro-shutter as an exposure frame counter'2001 6,226,116'Magnetic micro-shutters'2001 6,043,625'Battery charging system with battery type and polarity discrimination'2000 5,954,514'Talking album for photographic prints'1999 5,956,527'Waterproof protective housing for camera'1999 5,933,666'Camera with variable format viewfinder'1999 5,907,721'Protective housing for camera'1999 5,724,625'Belt-driven shutters'1998 5,717,964'Camera exposure apparatus having flash tubes for correcting for overexposure'1998 5,713,055'Ambient light sensitive automatic flash control circuit'1998 5,710,947'Pressure sensor control for electrically responsive camera feature'1998 5,707,240'Album with means for magnetically determining page position'1998 5,694,621'Underwater one-time-use camera with magnetic torque coupling for film winding'1997 5,652,930'Camera information display'1997 5,602,458'Rechargeable camera having operational inhibit of a flash unit power storage circuit during recharging'1997 5,555,069'Camera with electrochromic filter'1996 5,534,961'Belt drive shutter device'1996 5,498,949'Rechargeable device with operational inhibit during recharging'1996 5,337,110'Electromagnetic actuator'1994 5,333,025'Rotating magnet focal plane shutter usable in a camera and having an improved device for holding the shutter in a closed position'1994 5,164,754'Camera shutter release cable adapter'1992 5,159,382'Device and method for electromagnetically activating the shutter of a camera'1992 5,155,522'Self centering bi-directional electromagnetic actuator'1992 5,138,351'Battery charging apparatus with removable plug module'1992 5,126,778'Dedicated photographic flash system for varying flash spread based upon camera-to-subject distance'1992 4,881,093'Electromagnetic shutter apparatus'1989 4,821,053'Photographic flash device'1989 4,659,881'Multidome multistage switch assembly'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2012Patents assigned to EASTMAN KODAK CO (34)· patent assignee history

1987–2012Based in Rochester, NY, US· patent location history

1989–2007Based in Holley, NY, US· patent location history

1992–2001Based in Mount Holly, NJ, US· patent location history

2012Patents assigned to COREY RICHARD P (1)· patent assignee history

2012Patents assigned to DOWE DAVID R (1)· patent assignee history

2012Patents assigned to SILVERSTEIN BARRY D (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EASTMAN KODAK CO	34	1987–2012
COREY RICHARD P	1	2012
DOWE DAVID Rself	1	2012
SILVERSTEIN BARRY D	1	2012

Locations

Location	Patents	Span
Holley, New York, US	27	1989–2007
Rochester, New York, US	5	1987–2012
Mount Holly, New Jersey, US	2	1992–2001