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For the Inventor, By the Inventor

Rochester, NY, United States of America

Douglas W Constable

This inventor holds 24 USPTO granted patents, primarily in Camera Technology. Top assignee: Eastman-Kodak Company. Active years: 1987-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Douglas W Constable. Retrieved from https://idiyas.com/inventor/douglas-w-constable

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 24

% Patents Active = 87.5

Average Co-Inventor Count = 1.2

ph-index = 6

Forward Citations = 171(Granted Patents)


Company Filing History:

goldMedal24 out of 21,604 
 
Eastman-Kodak Company
 patents

Years Active: 1987-2005

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Areas of Expertise:
Camera
Flash Control
Optical Data Recording
Single-Use Camera
Battery Saving
Charger Control
Motorized Camera
Film Encoding
Video Stabilization
Dynamic Gain Correction
Ambient Light Sensitivity
Photographic Circuit
24 patents (USPTO):Explore Patents
1. 6871016 - Recyclable camera and method for assembling same (2005-03-22),
2. 6826365 - Battery saving flash charger control (2004-11-30),
3. 6768869 - Camera body, camera and method for assembling same (2004-07-27),
4. 6574430 - Camera electronic system and method of assembling same (2003-06-03),
5. 6442346 - Flash apparatus with one-time-use camera (2002-08-27),
6. 6351608 - One-time-use camera with external flash unit (2002-02-26),
7. 6249648 - Camera flash circuit with optical data recording circuit (2001-06-19),
8. 6054814 - Camera flash charging apparatus for low cost single use camera (2000-04-25),
9. 6038408 - Optical data recording circuit for a film camera (2000-03-14),
10. 6035141 - Optical data recording circuit for a film camera (2000-03-07),
11. 5870639 - Optical data recording circuit for a photographic camera (1999-02-09),
12. 5781804 - Single touch flash charger circuit with timer control (1998-07-14),
13. 5761541 - Single use camera with flash charging circuit (1998-06-02),
14. 5729774 - Low cost motorized camera with flash control circuit (1998-03-17),
15. 5713055 - Ambient light sensitive automatic flash control circuit (1998-01-27),

Title: Douglas W. Constable: A Pioneer in Camera Innovation

Introduction: Douglas W. Constable, a prominent inventor based in Rochester, NY, has made significant contributions to the field of camera technology with an impressive portfolio of 24 patents. His innovative approach has led to the development of environmentally friendly and efficient camera systems, shaping the future of photography.

Latest Patents: Among his latest inventions are a "Recyclable Camera and Method for Assembling Same" and a "Battery Saving Flash Charger Control." The recyclable camera features an advanced electrical system designed for a family of recyclable cameras, incorporating a first electronic circuit that performs essential functions such as charging a flash capacitor and discharging it through a flash tube to create a flash during photography. This system includes multiple second electronic circuits that engage with the first circuit, enabling various camera functions. Additionally, the battery-saving flash charger control comprises a flash circuit connected to a timing and reset circuit, ensuring efficient energy use while enhancing the user experience.

Career Highlights: Douglas W. Constable has built a notable career at Eastman Kodak Company, where he has been instrumental in researching and developing camera technologies. His dedication and innovative spirit have earned him recognition within the industry and among his peers.

Collaborations: Throughout his career, Douglas has worked alongside talented collaborators, including Randy E. Horning and David C. Smart. Their joint efforts have fostered a creative environment that has led to groundbreaking advancements in camera technology.

Conclusion: Douglas W. Constable stands out as an influential figure in the realm of camera innovation. His numerous patents highlight his commitment to improving photographic technology and sustainability. As the industry continues to evolve, Constable’s work will undoubtedly lay the groundwork for future advancements in camera systems.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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