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For the Inventor, By the Inventor

San Jose, CA, United States of America

John P Zajac

USPTO Granted Patents = 51

Average Co-Inventor Count = 1.3

ph-index = 16

Forward Citations = 650(Granted Patents)

Forward Citations (Not Self Cited) = 596(Oct 12, 2025)


Inventors with similar research interests:


Location History:

  • Sunnyvale, CA (US) (1980)
  • Santa Clara, CA (US) (1981)
  • San Jose, CA (US) (1980 - 2018)

Company Filing History:

goldMedal22 out of 22 
 
Zajac Optimum Output Motors, Inc.
 patents
silverMedal6 out of 95 
 
Tegal Corporation
 patents
bronzeMedal5 out of 5,989 
 
Eaton Corporation
 patents
4. 4 out of 278 
 
Mattson Technology, Inc
 patents
5. 1 out of 1 
 
Davis & Wilder, Inc.
 patent
6. 1 out of 7 
 
Matheson Gas Products, Inc.
 patents
7. 12 out of 832,680 
Other
 patents

Years Active: 1980-2018

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51 patents (USPTO):
1. 9869241 - Split cycle engine and method of operation (2018-01-16),
2. 9249696 - Valve assembly and method for high temperature engines (2016-02-02),
3. 9074526 - Split cycle engine and method with increased power density (2015-07-07),
4. 8413604 - Slotted electrostatic shield modification for improved etch and CVD process uniformity (2013-04-09),
5. 8371103 - Valve assembly and method for high temperature internal combustion engines (2013-02-12),
6. 7905204 - Internal combustion engine and method with improved combustion chamber (2011-03-15),
7. 7757644 - Internal combustion engine and method with improved combustion chamber (2010-07-20),
8. 7748352 - Internal combustion engine and method with improved combustion chamber (2010-07-06),
9. 7748351 - Internal combustion engine and method with improved combustion chamber (2010-07-06),
10. 7658169 - Internal combustion engine and method with improved combustion chamber (2010-02-09),
11. 7594492 - Rotary valve system and engine using the same (2009-09-29),
12. 7552703 - Internal combustion engine and method (2009-06-30),
13. 7487748 - Internal combustion engine and method (2009-02-10),
14. 7481189 - Internal combustion engine and method (2009-01-27),
15. 7448349 - Internal combustion engine and method (2008-11-11),

Title: The Innovative Journey of John P Zajac

Introduction: John P Zajac, a talented inventor based in San Jose, CA, has made significant contributions to the field of technology with his groundbreaking innovations.

Latest Patents: John P Zajac holds several patents in the areas of electronics and software development, with his most recent patent focusing on a cutting-edge artificial intelligence algorithm for autonomous vehicles.

Career Highlights: With a career spanning over two decades, John P Zajac has worked for leading tech companies in Silicon Valley, where he has spearheaded research and development projects that have revolutionized the industry.

Collaborations: Throughout his career, John P Zajac has collaborated with top engineers, designers, and researchers to bring his ideas to life. His ability to work in multidisciplinary teams has led to the successful implementation of several groundbreaking technologies.

Conclusion: John P Zajac's passion for innovation and his relentless drive to push the boundaries of technology make him a true pioneer in the field of inventions. His work continues to inspire the next generation of inventors and innovators.

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