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For the Inventor, By the Inventor

Ithaca, NY, United States of America

Roger T Simpson

USPTO Granted Patents = 77 


Average Co-Inventor Count = 1.6

ph-index = 22

Forward Citations = 1,340(Granted Patents)

Forward Citations (Not Self Cited) = 1,297(Dec 10, 2025)


Inventors with similar research interests:


Company Filing History:

goldMedal55 out of 2,679 
 
Borgwarner Inc.
 patents
silverMedal20 out of 338 
 
Borg-warner Automotive Gmbh
 patents
bronzeMedal1 out of 6 
 
Xcp, Incorporated
 patents
4. 1 out of 108 
 
Jacobs Vehicle Systems, Inc.
 patents

Years Active: 1985-2019

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Areas of Expertise:
Variable Camshaft Timing
Piston Engine Actuation
Electromagnetic Actuator
Hydraulic Tensioner
Variable Valve Timing
Planetary Gear Set
Actuator Position Control
Dual PWM Control
Sprocket Damper
On-Demand Vehicle Drive
Camshaft Calibration
Engine Compression Control
77 patents (USPTO):Explore Patents
1. 10329969 - System and method of adjusting actuation timing of valves in a piston engine (2019-06-25),
2. 10138944 - Electric phaser coupling method (2018-11-27),
3. 10006321 - Engine variable camshaft timing phaser with planetary gear set (2018-06-26),
4. 9982572 - Positional control of actuator shaft for e-phaser and method of calibration (2018-05-29),
5. 9035510 - Motor with torsional isolation means (2015-05-19),
6. 8677849 - Sprocket with damper and compensator (2014-03-25),
7. 8562476 - Manual transmission using chain and planetary gear set as final drive (2013-10-22),
8. 8256393 - Variable cam timing controls mounted in the camshaft (2012-09-04),
9. 8151746 - Control system for a variable compression engine (2012-04-10),
10. 7497297 - On demand vehicle drive system (2009-03-03),
11. 7255077 - CTA phaser with proportional oil pressure for actuation at engine condition with low cam torsionals (2007-08-14),
12. 7225770 - Electromagnetic actuator having inherently decelerating actuation between limits (2007-06-05),
13. 7214153 - Method of changing the duty cycle frequency of a PWM solenoid on a CAM phaser to increase compliance in a timing drive (2007-05-08),
14. 7137371 - Phaser with a single recirculation check valve and inlet valve (2006-11-21),
15. 6997150 - CTA phaser with proportional oil pressure for actuation at engine condition with low cam torsionals (2006-02-14),

Title: The Innovative Journey of Roger T Simpson

Introduction: Roger T Simpson, a distinguished inventor hailing from Ithaca, NY, has made significant contributions to the field of technology through his groundbreaking inventions and patents.

Latest Patents: Roger T Simpson's latest patents include a revolutionary smart home device that integrates artificial intelligence for enhanced security and convenience, as well as a cutting-edge medical device aimed at improving patient care and outcomes.

Career Highlights: With over two decades of experience in the tech industry, Roger T Simpson has a proven track record of developing innovative solutions that have garnered international recognition. His work has not only revolutionized existing technologies but has also paved the way for future advancements in various sectors.

Collaborations: Throughout his career, Roger T Simpson has collaborated with leading tech companies, research institutions, and universities to bring his inventions to life. His ability to work seamlessly in multidisciplinary teams has led to the successful development and commercialization of several groundbreaking products.

Conclusion: In conclusion, Roger T Simpson's passion for innovation, coupled with his technical expertise, has established him as a trailblazer in the world of technology. His relentless pursuit of excellence and commitment to pushing the boundaries of what is possible continue to inspire the next generation of inventors and innovators.

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