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For the Inventor, By the Inventor

Buffalo, NY, United States of America

Harper International Corporation


USPTO Granted Patents = 13



Trademarks = 7

Forward Citations = 84

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17 inventors (with patents filed for the assignee):

goldMedal Edward V McCormick (5 out of 7 patents)

silverMedal Bruce J Dover (5 out of 6 patents)

bronzeMedal William J Stry (4 out of 4 patents)

4.  Renee M Bagwell (2 out of 2 patents)

5.  David M Bencic (2 out of 4 patents)

6.  Carl H Vander Weide (2 out of 2 patents)

7.  Peter R Witting (1 out of 1 patent)

8.  Jeffrey E Purdy (1 out of 1 patent)

9.  Jason A Ginn (1 out of 1 patent)

10.  Charles Miller (1 out of 1 patent)

11.  Uwe Hoechst (1 out of 1 patent)

12.  Ludger Fischer (1 out of 2 patents)

13.  Brian A Polino (1 out of 1 patent)

14.  Douglas E Ludwig (1 out of 1 patent)

15.  Edgard Matrak (1 out of 2 patents)


13 patents:

1. 9618228 - Airflow distribution system (2017-04-11),
2. 9255733 - Oven for fiber heat treatment (2016-02-09),
3. 8485815 - Overhung rotary tube furnace (2013-07-16),
4. 6910882 - Vertical conveyor apparatus for high temperature continuous processing of materials (2005-06-28),
5. 6569222 - Continuous single stage process for the production of molybdenum metal (2003-05-27),
6. 6514072 - Method of processing carbon fibers (2003-02-04),
7. 6464493 - Multi-axis rotary seal system (2002-10-15),
8. 6328558 - Purge chamber (2001-12-11),
9. 6031207 - Sintering kiln (2000-02-29),
10. 5997289 - Rotary calciner with mixing flights (1999-12-07),
11. 5927969 - Batch system cross-flow rotary calciner (1999-07-27),
12. 5908291 - Continuous cross-flow rotary kiln (1999-06-01),
13. 5906483 - Rotary film calciner (1999-05-25),
Harper International is a global leader in thermal processing solutions for advanced materials. With decades of experience and expertise, we design, manufacture, and support custom industrial furnaces, kilns, and other thermal processing systems. Our innovative technologies and advanced engineering capabilities make us the top choice for industries like aerospace, electronics, and batteries.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

13 Patents

#28 in Buffalo, NY

#1,282 in New York

#23,099 in US

#43,615 in the World

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Buffalo, NY, United States of America

Harper International Corporation

Forward Citations = 84

17 inventors:

goldMedal Edward V McCormick (5 out of 7 patents)

silverMedal Bruce J Dover (5 out of 6 patents)

bronzeMedal William J Stry (4 out of 4 patents)

4.  Renee M Bagwell (2 out of 2 patents)

5.  David M Bencic (2 out of 4 patents)

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