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For the Inventor, By the Inventor

Rochester, NY, United States of America

William E Yoerger

This inventor holds 23 USPTO granted patents, primarily in Electrographic Developers. Top assignee: Eastman-Kodak Company. Active years: 1976-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: William E Yoerger. Retrieved from https://idiyas.com/inventor/william-e-yoerger

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

USPTO Granted Patents = 23

% Patents Active = 100.0

Average Co-Inventor Count = 1.4

ph-index = 8

Forward Citations = 194(Granted Patents)


Company Filing History:

goldMedal23 out of 21,604 
 
Eastman-Kodak Company
 patents

Years Active: 1976-1999

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Areas of Expertise:
Electrostatographic
Carrier Particles
Chemical Sensitizers
Photoconductors
Magnetic Carrier
Insulable Metal Salts
Electrophotographic
Toner Particles
Polymeric Coatings
Barium Ferrite
Strontium Ferrite
Heterogeneous Compositions
23 patents (USPTO):Explore Patents
1. 5989767 - Carrier particles for electrostatographic developers (1999-11-23),
2. 5709975 - Coated hard ferrite carrier particles (1998-01-20),
3. 5705221 - Method of depositing insoluble metal salt deposits on (1998-01-06),
4. 5686217 - Carrier particles bearing insoluble metal salt deposits (1997-11-11),
5. 5512403 - Mixture of carrier particles useful in electrographic developers (1996-04-30),
6. 5411832 - Method of modifying the charging propensity of carrier particles for (1995-05-02),
7. 5272039 - Preparation of magnetic carrier particles (1993-12-21),
8. 5124223 - Magnetic carrier cores coated with perfluorinated Werner complexes and (1992-06-23),
9. 5100754 - Coated carrier particles and electrographic developers containing them (1992-03-31),
10. 5096797 - Method for improving performance of barium and strontium ferrite carrier (1992-03-17),
11. 5061593 - Coated carrier particles for electrographic developers (1991-10-29),
12. 5034297 - Bound metal alkoxide coated toner particles (1991-07-23),
13. 4737435 - Method of modifying the charging propensity of carrier particles for (1988-04-12),
14. 4726994 - Method of modifying the charging propensity of carrier particles for (1988-02-23),
15. 4599290 - Negative charging carrier particles coated with a polymer having (1986-07-08),

Title: Innovations by William E. Yoerger in Electrophotography

Introduction

William E. Yoerger is a prominent inventor based in Rochester, NY, with an impressive portfolio of 23 patents. His contributions primarily focus on innovations in electrostatographic imaging processes. With a keen understanding of the technology and its applications, Yoerger has played a significant role in advancing this field through his inventive solutions.

Latest Patents

Among his latest patents, Yoerger has developed carrier particles for electrostatographic developers. These particles consist of core materials, such as strontium ferrite, which are coated with a silicone resin mixed with an alkali metal salt of an organic acid. This innovation enhances the charging rates for toner, reduces toner throw-off, and improves charge stability. Another significant invention by him is the coated hard ferrite carrier particles, which comprise hard ferrite particles coated with a silicone resin and colloidal silica. This development is pivotal for electrophotographic carriers, offering enhanced performance in imaging applications.

Career Highlights

Yoerger is associated with Eastman Kodak Company, where his innovative work continues to impact the imaging technology sector. His extensive background in this industry has allowed him to make meaningful contributions that support the evolution of electrostatographic technology.

Collaborations

Throughout his career, Yoerger has collaborated with notable peers, including Frank A. Pettrone and John M. McCabe. Their collective expertise and teamwork have resulted in significant advancements in electrostatographic imaging, demonstrating the importance of collaboration in the innovation process.

Conclusion

William E. Yoerger's contributions to the field of electrophotography through his patents exemplify the impact of innovation and collaboration in technology. His work continues to pave the way for advancements in imaging processes, revealing the vital role of inventive minds in shaping the future of industry.

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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