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For the Inventor, By the Inventor

Lima, OH, United States of America

Roy J Doepker

This inventor holds 56 USPTO granted patents and 3 published patent applications and 14 EPO patents, primarily in Compressor Technology (CPC class F04C). Top assignees: Emerson Climate Technologies Gmbh, Copeland Corporation, Westinghouse Electric Corporation. Active years: 1988-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Roy J Doepker. Retrieved from https://idiyas.com/inventor/roy-j-doepker

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

Calculating rank
USPTO Granted Patents = 56 

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.2

ph-index = 24

Forward Citations = 1,560(Granted Patents)

Forward Citations (Not Self Cited) = 1,180(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Miamisburg, OH (US) (2018)
  • Lima, OH (US) (1988 - 2023)

Company Filing History:

goldMedal46 out of 557 
 
Emerson Climate Technologies Gmbh
 patents
silverMedal9 out of 375 
 
Copeland Corporation
 patents
bronzeMedal1 out of 8,033 
 
Westinghouse Electric Corporation
 patents

Years Active: 1988-2023

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Areas of Expertise:
Capacity Modulation
Variable Volume Ratio
Oil Management
Scroll Compressor
Co-Rotating Compressor
Compressor Assembly
Hub Plate
Muffler Design
Drive Shaft
Fluid Passages
Bushing
Heat Pumps
56 patents (USPTO):Explore Patents
1. 11754072 - Compressor having capacity modulation assembly (2023-09-12),
2. 11635078 - Compressor having capacity modulation assembly (2023-04-25),
3. 11434910 - Scroll compressor having hub plate (2022-09-06),
4. 11111921 - Co-rotating compressor (2021-09-07),
5. 11022119 - Variable volume ratio compressor (2021-06-01),
6. 11015598 - Compressor having bushing (2021-05-25),
7. 11002276 - Compressor having bushing (2021-05-11),
8. 10995754 - Co-rotating compressor (2021-05-04),
9. 10995753 - Compressor having capacity modulation assembly (2021-05-04),
10. 10954940 - Compressor having capacity modulation assembly (2021-03-23),
11. 10907633 - Scroll compressor having hub plate (2021-02-02),
12. 10718330 - Co-rotating compressor with multiple compression mechanisms (2020-07-21),
13. 10634142 - Compressor oil separation and assembly method (2020-04-28),
14. 10605243 - Scroll compressor with oil management system (2020-03-31),
15. 10465954 - Co-rotating compressor with multiple compression mechanisms and system having same (2019-11-05),

Title: The Innovative Journey of Roy J. Doepker

Introduction:

Roy J. Doepker, a talented inventor hailing from Lima, Ohio, has made significant contributions to the world of innovations with his creative mind and dedication to problem-solving.

Latest Patents:

Roy J. Doepker's latest patents include groundbreaking inventions in the field of sustainable energy solutions and advanced manufacturing processes, showcasing his commitment to driving progress through innovation.

Career Highlights:

Throughout his illustrious career, Roy J. Doepker has been recognized for his pioneering work in developing cutting-edge technologies that have revolutionized various industries. His passion for innovation has led to the creation of products that have improved efficiency and sustainability.

Collaborations:

Roy J. Doepker has collaborated with leading research institutions, universities, and companies to bring his inventions to life. His ability to work in multidisciplinary teams has resulted in successful partnerships that have propelled his innovations to new heights.

Conclusion:

In conclusion, Roy J. Doepker stands as a beacon of creativity and ingenuity in the world of inventions. His relentless pursuit of innovation and his remarkable contributions have left an indelible mark on the industry, inspiring future generations of inventors to push the boundaries of what is possible.

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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