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For the Inventor, By the Inventor

Puchheim, Germany

Helmut Zangenfeind

This inventor holds 19 USPTO granted patents, primarily in Photographic Film Processing. Top assignee: Agfa-Gevaert Ag. Active years: 1977-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Helmut Zangenfeind. Retrieved from https://idiyas.com/inventor/helmut-zangenfeind

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

Calculating rank
USPTO Granted Patents = 19

% Patents Active = 100.0

Average Co-Inventor Count = 2.5

ph-index = 7

Forward Citations = 120(Granted Patents)


Company Filing History:

goldMedal19 out of 1,473 
 
Agfa-Gevaert Ag
 patents

Years Active: 1977-1999

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Areas of Expertise:
Photographic Film
Film Processing
Film Testing
Cartridge Removal
Film Splicing
Film Transport
Film Stacking
Encoded Information
Darkroom Processing
Cassettes
Envelopes
Reels
19 patents (USPTO):Explore Patents
1. 6000861 - Method of and device for testing a photographic film (1999-12-14),
2. 5842077 - Device for the automatic removal of a photographic film from a cartridge (1998-11-24),
3. 5781819 - Device for feeding film cartridges (1998-07-14),
4. 5708905 - Device for automatic removal of a photographic film from a cartridge (1998-01-13),
5. 5279696 - Apparatus for reading and processing encoded information of uniting (1994-01-18),
6. 5154410 - Apparatus for straightening and stacking envelopes for photosensitive (1992-10-13),
7. 4894675 - Apparatus for splicing together undeveloped customer films in a darkroom (1990-01-16),
8. 4888613 - Method of and apparatus for processing exposed photographic films (1989-12-19),
9. 4799076 - Apparatus for affording access to exposed but undeveloped films in a (1989-01-17),
10. 4732278 - Apparatus for transporting cartridge for exposed roll film (1988-03-22),
11. 4643371 - Apparatus for unwinding exposed roll films from reels (1987-02-17),
12. 4621970 - Apparatus for removing reels with exposed roll films from cartridges (1986-11-11),
13. 4360138 - Apparatus for removing exposed films and backing strips from cassettes (1982-11-23),
14. 4282997 - Apparatus for removing exposed films and backing strips from cassettes (1981-08-11),
15. 4094726 - Apparatus for processing exposed photographic films and cassettes for (1978-06-13),

Title: The Innovative Genius of Helmut Zangenfeind: A Patented Journey in Photography

Introduction: Helmut Zangenfeind, an inventive force hailing from Puchheim, Germany, has made significant contributions to the field of photography through his inventive prowess. With a remarkable tally of 19 patents, Zangenfeind’s innovations have revolutionized the way photographic films are handled and tested.

Latest Patents: Among his latest patents, Zangenfeind has developed a method and device for testing photographic films, as well as a device designed for the automatic removal of photographic film from cartridges. His invention features a unique design that allows the cartridge to be oriented in one specific direction, enabling it to travel through the guide opening by its own weight. Additionally, Zangenfeind's system provides a mechanism for simultaneously and linearly displacing the spool's axis, allowing it to rotate from vertical to horizontal. This innovation facilitates efficient unwinding of the film from the spool while ensuring the cartridge remains securely in place within the receptacle, all managed by a single actuator.

Career Highlights: Throughout his career, Helmut Zangenfeind has been associated with Agfa-Gevaert AG, a leading company in image processing technology. His work there has led to the development of several groundbreaking technologies that continue to influence the industry.

Collaborations: During his journey, Zangenfeind has worked alongside notable colleagues, including Gunther Domges and Reinhart Wurfel. Their collaboration has fostered an environment of creativity and innovation, resulting in advancements that have propelled their projects forward.

Conclusion: Helmut Zangenfeind stands out as a significant contributor to the realm of photographic technology through his innovative designs and patent achievements. His inventions not only illustrate his dedication to advancing the field but also highlight the importance of collaboration in driving innovation forward. As photography continues to evolve, Zangenfeind's contributions will undoubtedly remain influential in shaping its future.

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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