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For the Inventor, By the Inventor

Lexington, KY, United States of America

John Parker Richey

USPTO Granted Patents = 21

Average Co-Inventor Count = 3.4

ph-index = 7

Forward Citations = 235(Granted Patents)


Company Filing History:

goldMedal19 out of 3,033 
 
Lexmark International, Inc.
 patents
silverMedal2 out of 832,891 
Other
 patents

Years Active: 1997-2018

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21 patents (USPTO):Explore Patents
1. 10001732 - Power management and control for a fuser of an electrophotographic imaging device (2018-06-19),
2. 9639038 - Power management and control for a fuser of an electrophotographic imaging device (2017-05-02),
3. 8301049 - Characterization of toner patch sensor in an image forming device (2012-10-30),
4. 7890006 - Characterization of toner patch sensor (2011-02-15),
5. 7593653 - Optical sensor system with a dynamic threshold for monitoring toner transfer in an image forming device (2009-09-22),
6. 7515646 - Method and apparatus for reducing EMI emissions for data signals traveling over a data pathway (2009-04-07),
7. 7433630 - Method and apparatus for characterizing and compensating drive train rotational velocity errors (2008-10-07),
8. 7277111 - Multiple speed modes for an electrophotographic device (2007-10-02),
9. 7018121 - Combined paper and transparency sensor for an image forming apparatus (2006-03-28),
10. 6661981 - Method and apparatus for controlling transfer belt velocity of a color printer (2003-12-09),
11. 6580881 - Method of detecting waste toner in a container of an image forming apparatus (2003-06-17),
12. 6560434 - Intermediate transfer member motion control via surface wheel feedback (2003-05-06),
13. 6459443 - Method of minimizing print delay due to mirror motor warm-up in an electrophotographic machine (2002-10-01),
14. 6366174 - Method and apparatus for providing a clock generation circuit for digitally controlled frequency or spread spectrum clocking (2002-04-02),
15. 6285383 - Method of controlling laser scanner phase in a multicolor electrophotographic machine (2001-09-04),

Title: John Parker Richey: A Pioneer in Electrophotographic Imaging Technologies

Introduction: John Parker Richey is an accomplished inventor based in Lexington, KY, known for his significant contributions to electrophotographic imaging devices. With a remarkable portfolio of 21 patents, his innovations have played a pivotal role in enhancing power management and control systems within this technology sector.

Latest Patents: Richey’s latest patents revolve around improving the fuser system in electrophotographic imaging devices. One of his notable patents delineates a system and method for controlling the fuser assembly, which includes determining the resistance of the fuser heater at predetermined temperatures. This patent emphasizes calculating set point heater resistance and controlling the speed of the fusing operation based on calculated heater power. Another recent patent focuses on initiating readings of line current and line voltage across multiple AC cycles to calculate heater performance during specific cycles, thereby optimizing the control of the fuser assembly.

Career Highlights: Richey has made substantial contributions to the field through his roles at notable companies. He has been associated with Lexmark International, Inc., where he has played a vital role in the development of innovative technologies that enhance the efficiency and performance of printing devices.

Collaborations: Throughout his career, Richey has collaborated with distinguished professionals, including Mark Andrew Omelchenko and Keith Bryan Hardin. These collaborations have fostered an environment of creativity and innovation, leading to advancements in imaging technology.

Conclusion: John Parker Richey's innovations in electrophotographic imaging technologies have positioned him as a prominent figure in the field. With a strong record of patents and collaborative efforts, he continues to impact the technology landscape, paving the way for advancements in power management and control systems. His work not only enhances the performance of imaging devices but also reflects his dedication to innovation and excellence.

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