Inventor
Douglas W. Constable
Inventor
Rochester, NY, US
Overview
Patents· 28 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 them50%
H04NPictorial communication, e.g. television28%
H05BElectric heating13%
H05KPrinted circuits6%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy3%
PatentTitleYear
6,871,016'Recyclable camera and method for assembling same'20056,826,365'Battery saving flash charger control'20046,768,869'Camera body, camera and method for assembling same'20046,574,430'Camera electronic system and method of assembling same'20036,442,346'Flash apparatus with one-time-use camera'20026,351,608'One-time-use camera with external flash unit'20026,249,648'Camera flash circuit with optical data recording circuit'20016,054,814'Camera flash charging apparatus for low cost single use camera'20006,038,408'Optical data recording circuit for a film camera'20006,035,141'Optical data recording circuit for a film camera'20005,870,639'Optical data recording circuit for a photographic camera'19995,781,804'Single touch flash charger circuit with timer control'19985,761,541'Single use camera with flash charging circuit'19985,729,774'Low cost motorized camera with flash control circuit'19985,713,055'Ambient light sensitive automatic flash control circuit'19985,634,153'Static immunity for single touch flash charger control'19975,619,737'Encodement-on-film recording apparatus utilizes flash components in a camera'19975,574,521'Optical film encoding apparatus'19965,567,543'Filmstrip and flexible battery unit'19965,390,020'Video amplifier stabilization for CRT printing'19955,303,056'Dynamic gain correction for CRT printing'19945,140,422'Video sync removal circuit'19924,694,356'Modification of color component video signals to compensate for decreasing white sensitivity of photographic element'19874,694,355'Black and white level adjustment and normalization circuit for a color video printer'19874,262,303'Correct tint indicator circuit for a VIR system'19814,178,610'Clamp circuit for RGB output stages'19794,106,055'Automatic color level control system with threshold tracking'19784,090,216'Ambient light contrast and color control circuit'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1979Patents assigned to GTE SYLVANIA INC (3)· patent assignee history
1978–1981Based in Batavia, NY, US· patent location history
1981Patents assigned to GTE PROD CORP (1)· patent assignee history
1987–2005Patents assigned to EASTMAN KODAK CO (24)· patent assignee history
1987–2005Based in Rochester, NY, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EASTMAN KODAK CO | 24 | 1987–2005 |
| GTE SYLVANIA INC | 3 | 1978–1979 |
| GTE PROD CORP | 1 | 1981 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rochester, New York, US | 24 | 1987–2005 |
| Batavia, New York, US | 4 | 1978–1981 |