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For the Inventor, By the Inventor

Gauting, Germany

Siegfried Bartel

This inventor holds 11 USPTO granted patents. Top assignee: Agfa-Gevaert Ag. Active years: 1977-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Siegfried Bartel. Retrieved from https://idiyas.com/inventor/siegfried-bartel

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

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 3.1

ph-index = 6

Forward Citations = 107(Granted Patents)


Company Filing History:

goldMedal11 out of 1,473 
 
Agfa-Gevaert Ag
 patents

Years Active: 1977-1984

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11 patents (USPTO):Explore Patents
1. 4444489 - Apparatus for influencing the color of copying light in photographic (1984-04-24),
2. 4441667 - Cassette for winding band-like photographic material (1984-04-10),
3. 4353646 - Apparatus for positioning originals in photographic copying machines (1982-10-12),
4. 4330096 - Apparatus for winding or unwinding webs of photosensitive material or (1982-05-18),
5. 4218032 - Apparatus for convoluting webs onto rotary cores (1980-08-19),
6. 4214689 - Automatic counteracting of transverse shift of a longitudinally (1980-07-29),
7. 4194836 - Photographic copying machine with carrier structure _carrying format (1980-03-25),
8. 4135802 - Cassette for light-sensitive photographic material (1979-01-23),
9. 4033693 - Light interrupter (1977-07-05),
10. 4025025 - Apparatus for scanning a marked web (1977-05-24),
11. 4018527 - Apparatus for controlling the movements of printing filters (1977-04-19),

Title: Siegfried Bartel: Innovator in Photographic Technology

Introduction

Siegfried Bartel is a notable inventor based in Gauting, Germany. He has made significant contributions to the field of photographic technology, holding a total of 11 patents. His innovative designs have advanced the functionality and efficiency of photographic equipment.

Latest Patents

Among his latest patents is an "Apparatus for influencing the color of copying light in photographic." This invention features a photographic copying machine that utilizes three color filters, each comprising several pivotable triangular sectors. These sectors can be adjusted into various positions to control the path of copying light. The design includes a crank drive and a reversible stepping motor, allowing for precise control over the filtering action. Another notable patent is a "Cassette for winding band-like photographic material." This cassette is designed with a housing that includes a slot for introducing photographic material, a driven winding core, and lever arms that facilitate the winding process.

Career Highlights

Siegfried Bartel has spent a significant part of his career at Agfa-Gevaert AG, a company renowned for its imaging technology. His work has contributed to the development of advanced photographic solutions that cater to both professional and consumer markets.

Collaborations

Throughout his career, Bartel has collaborated with esteemed colleagues such as Ernst Biedermann and Bernd Payrhammer. These partnerships have fostered innovation and have led to the successful development of various photographic technologies.

Conclusion

Siegfried Bartel's contributions to photographic technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the industry and enhance the capabilities of photographic equipment.

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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