Waltham, MA, United States of America

Charles A Barr


Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 13(Granted Patents)


Company Filing History:


Years Active: 1985

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1 patent (USPTO):Explore Patents

Title: The Innovative Mind of Charles A. Barr

Introduction

Charles A. Barr is a notable inventor based in Waltham, MA (US). He is recognized for his contributions to the field of photography, particularly through his innovative designs that enhance the user experience with photographic transparencies. His work has led to the development of a unique handheld viewer that has practical applications in various photographic settings.

Latest Patents

One of Barr's significant inventions is a handheld viewer for transparency film. This compact device is specifically designed for use with photographic transparencies that are housed within a film cassette in roll form. The viewer allows users to access a strip containing multiple individual scenes or individually mounted transparencies. It features a manually operable drive system that enables the selective operation of either a film take-up reel or a film spool. This functionality allows users to withdraw film from a cassette and advance it through a projection station or rewind the film back into the cassette.

Career Highlights

Charles A. Barr has made substantial contributions to the field of photography during his career. He is associated with Polaroid Corporation, a company renowned for its innovations in instant photography. His work at Polaroid has allowed him to collaborate with other talented individuals in the industry, further enhancing the development of photographic technologies.

Collaborations

Throughout his career, Barr has worked alongside notable colleagues such as David E. Van Allen and John K. Zanardelli. These collaborations have played a significant role in advancing the technology and applications of photographic devices.

Conclusion

Charles A. Barr's inventive spirit and dedication to enhancing photographic experiences have made a lasting impact in the field. His handheld viewer for transparency film exemplifies his innovative approach to solving practical problems in photography. His contributions continue to inspire future advancements in the industry.

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