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For the Inventor, By the Inventor

Fairport, NY, United States of America

Joan R Ewing

USPTO Granted Patents = 17

Average Co-Inventor Count = 2.2

ph-index = 12

Forward Citations = 305(Granted Patents)


Location History:

  • Rochester, NY (US) (1977)
  • Pittsford, NY (US) (1976 - 1982)
  • Fairport, NY (US) (1986 - 2002)

Company Filing History:

goldMedal17 out of 24,190 
 
Xerox Corporation
 patents

Years Active: 1976-2002

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17 patents (USPTO):Explore Patents
1. 6350516 - Protective corona coating compositions and processes thereof (2002-02-26),
2. 5968674 - Conductive polymer coatings and processes thereof (1999-10-19),
3. 5731078 - Developing apparatus and coated developer roller (1998-03-24),
4. 5587224 - Developing apparatus including a coated developer roller (1996-12-24),
5. 5325267 - Remote driver board having input/output connector circuitry molded (1994-06-28),
6. 5267866 - Flexible electrical interconnect (1993-12-07),
7. 5153023 - Process for catalysis of electroless metal plating on plastic (1992-10-06),
8. 5008707 - Simultaneous charging and exposure for pictorial quality (1991-04-16),
9. 4937633 - Cleaning blade defect sensing arrangement (1990-06-26),
10. 4841099 - Electrically insulating polymer matrix with conductive path formed in (1989-06-20),
11. 4761709 - Contact brush charging (1988-08-02),
12. 4727453 - Alternating current inductive charging of a photoreceptor (1988-02-23),
13. 4585323 - Corona generating device (1986-04-29),
14. 4585320 - Corona generating device (1986-04-29),
15. 4330349 - Method for preparing conductive fiber brushes (1982-05-18),

Title: Innovations of Joan R. Ewing: A Pioneer in Coating Technologies

Introduction: Joan R. Ewing, based in Fairport, NY, is a notable inventor with an impressive portfolio of 17 patents. As a distinguished figure in the field of coating technologies, her recent innovations are particularly vital in advancing the functionality and durability of various applications.

Latest Patents: Among her latest contributions to technology are two groundbreaking patents. The first is a protective corona coating composition and processes thereof, which includes a corotron assembly and a protective coating designed to combat acidic oxygenates of nitrogen. This innovative coating incorporates sequestering additives, such as ferrous fumarate or ferrous oxalate, effectively targeting problematic nitrate or nitrite compounds. The second patent focuses on conductive polymer coatings and processes thereof. This inventive coating comprises an arylamine charge transport compound combined with an oxidized arylamine charge transport compound salt and a polymer binder. Notably, the oxidized arylamine charge transport compound salt employs a counter anion selected from specific groups, including hexafluoroantimonate and hexafluoroarsenate.

Career Highlights: Joan R. Ewing is currently associated with Xerox Corporation, a company renowned for its innovations in imaging and printing technologies. Her career at Xerox showcases her dedication to pushing the boundaries of technology through her inventive spirit.

Collaborations: Throughout her career, Joan has collaborated with esteemed colleagues in the field. Notable coworkers include Joseph A. Swift and Bing R. Hsieh, with whom she has worked closely to develop cutting-edge technologies.

Conclusion: Joan R. Ewing exemplifies innovation through her extensive work in protective and conductive coatings. With 17 patents to her name, she continues to make significant strides in coating technologies that enhance performance and durability across various applications. Her contributions not only reflect her individual talent but also highlight the importance of collaboration in the advancement of technology.

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