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For the Inventor, By the Inventor

Schenectady, NY, United States of America

John D Harnden, Jr

USPTO Granted Patents = 29

Average Co-Inventor Count = 2.3

ph-index = 15

Forward Citations = 641(Granted Patents)


Company Filing History:

goldMedal27 out of 51,873 
 
General Electric Company
 patents
silverMedal2 out of 43 
 
Pacific Bell
 patents

Years Active: 1977-1993

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29 patents (USPTO):Explore Patents
1. 5235159 - Control system, method of operating a heating apparatus and controlled (1993-08-10),
2. 4967568 - Control system, method of operating an atmospheric cooling apparatus and (1990-11-06),
3. 4819126 - Piezoelectic relay module to be utilized in an appliance or the like (1989-04-04),
4. 4764714 - Electronic starting circuit for an alternating current motor (1988-08-16),
5. 4755706 - Piezoelectric relays in sealed enclosures (1988-07-05),
6. 4742263 - Piezoelectric switch (1988-05-03),
7. 4714847 - Advanced piezoeceramic power switching devices employing protective (1987-12-22),
8. 4697118 - Piezoelectric switch (1987-09-29),
9. 4689517 - Advanced piezoceramic power switching devices employing protective (1987-08-25),
10. 4680840 - Method for prepolarizing and centering a piezoceramic power switching (1987-07-21),
11. 4678957 - Piezoelectric ceramic switching devices and systems and methods of (1987-07-07),
12. 4670682 - Piezoelectric ceramic switching devices and systems and method of making (1987-06-02),
13. 4669160 - Method for prepolarizing and centering a piezoelectric ceramic switching (1987-06-02),
14. 4658154 - Piezoelectric relay switching circuit (1987-04-14),
15. 4626698 - Zero crossing synchronous AC switching circuits employing piezoceramic (1986-12-02),

Title: John D Harnden, Jr: Pioneering Inventor from Schenectady

Introduction: John D Harnden, Jr is a distinguished inventor hailing from Schenectady, NY. His innovative spirit and dedication to technological advancements have made him a prominent figure in the world of patents and inventions.

Latest Patents: John D Harnden, Jr holds several groundbreaking patents in various fields, showcasing his versatility and creativity as an inventor. His recent patents focus on renewable energy solutions and sustainable technologies, contributing to a greener future.

Career Highlights: Throughout his illustrious career, John D Harnden, Jr has worked with leading research institutions and companies to bring his inventions to life. His contributions to the fields of electronics, energy, and materials science have earned him recognition as a trailblazer in innovation.

Collaborations: John D Harnden, Jr has collaborated with top engineers, scientists, and inventors to push the boundaries of technology and create solutions to complex challenges. His collaborative efforts have resulted in groundbreaking inventions that have the potential to revolutionize industries.

Conclusion: John D Harnden, Jr's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a visionary inventor. His dedication to creating impactful solutions underscores his commitment to shaping a better future through technology.

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