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Langenfeld, Germany

Rudolf Stolzenburg

This inventor holds 10 USPTO granted patents. Top assignee: Agfa-Gevaert Ag. Active years: 1979-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Rudolf Stolzenburg. Retrieved from https://idiyas.com/inventor/rudolf-stolzenburg

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 3.7

ph-index = 5

Forward Citations = 55(Granted Patents)


Location History:

  • Dusseldorf, DE (1979)
  • Duesseldorf, DE (1980 - 1983)
  • Langenfold, DE (1985)
  • Langenfeld, DE (1985 - 1991)

Company Filing History:

goldMedal10 out of 1,473 
 
Agfa-Gevaert Ag
 patents

Years Active: 1979-1991

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10 patents (USPTO):Explore Patents
1. 5021330 - Color photographic recording material containing a coupler releasing a (1991-06-04),
2. 4870000 - Color photograhic recording material containing a coupler which releases (1989-09-26),
3. 4767698 - Photographic material containing a pyridine azo or pyridazine azo cyan (1988-08-30),
4. 4579805 - Color photographic recording material containing a thiophene azo dye (1986-04-01),
5. 4559296 - Photographic recording material containing new azo dyes (1985-12-17),
6. 4524124 - Color photographic recording material containing a thiazole azo dye (1985-06-18),
7. 4521506 - Monoazo pyridinol dyes chelated or capable of being chelated with metal (1985-06-04),
8. 4393132 - Photographic recording material with arylazocyanoacetic ester dye (1983-07-12),
9. 4195992 - Photographic dye diffusion transfer process (1980-04-01),
10. 4139383 - Dye diffusion transfer employing pyridine azo dye (1979-02-13),

Title: The Innovations of Rudolf Stolzenburg

Introduction

Rudolf Stolzenburg is a notable inventor based in Langenfeld, Germany. He has made significant contributions to the field of color photographic materials, holding a total of 10 patents. His work has advanced the technology used in photographic recording materials, particularly through the development of innovative couplers.

Latest Patents

Stolzenburg's latest patents include a color photographic recording material that contains a coupler releasing a photographically active compound. This invention utilizes DIR couplers of a specific formula to achieve high edge effects and inter-image effects in color photographic silver halide materials. The couplers he developed couple with color developers to form yellow to yellow-orange dyes, releasing development inhibitors that enhance photographic quality.

Career Highlights

Throughout his career, Stolzenburg has been associated with Agfa-Gevaert AG, a leading company in imaging technology. His work has been instrumental in pushing the boundaries of photographic technology, making significant strides in the quality and effectiveness of photographic materials.

Collaborations

Stolzenburg has collaborated with notable colleagues such as Peter Bergthaller and Paul Marx. These partnerships have contributed to the successful development of innovative photographic solutions.

Conclusion

Rudolf Stolzenburg's contributions to the field of color photographic materials have been impactful and transformative. His patents reflect a deep understanding of photographic technology and a commitment to innovation.

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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