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For the Inventor, By the Inventor

Hendersonville, NC, United States of America

Porvair Corporation


USPTO Granted Patents = 26



Trademarks = 8

Forward Citations = 552

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37 inventors (with patents filed for the assignee):

goldMedal Leonard S Aubrey (8 out of 10 patents)

silverMedal Kenneth R Butcher (4 out of 17 patents)

bronzeMedal Rudolph A Olson, Iii (3 out of 7 patents)

4.  Feng Chi (3 out of 3 patents)

5.  David P Haack (3 out of 3 patents)

6.  Gary R Pickrell (3 out of 15 patents)

7.  David Leonard Boutle (3 out of 4 patents)

8.  Myron K Redden (2 out of 4 patents)

9.  Chi Li Lin (2 out of 2 patents)

10.  Victor Ralph Cunningham (2 out of 2 patents)

11.  Eric Albert Warwicker (2 out of 2 patents)

12.  Lucas Damoah (1 out of 1 patent)

13.  Matthew W Willer (1 out of 1 patent)

14.  Christopher J Plantec (1 out of 1 patent)

15.  Mark J Topolski (1 out of 1 patent)


26 patents:

1. 9504944 - [object Object] (2016-11-29),
2. 9458523 - Corrosion resistant glass coating applied to ceramic foam used to filter molten aluminum (2016-10-04),
3. 8518528 - Low expansion corrosion resistant ceramic foam filters for molten aluminum filtration (2013-08-27),
4. 8486176 - Method for filtering molten aluminum and molten aluminum alloys (2013-07-16),
5. 8202346 - Porous reticulated metal foam for filtering molten magnesium (2012-06-19),
6. 7718114 - Ceramic foam filter for better filtration of molten iron (2010-05-18),
7. 7585455 - Compact micro-porous media degasser (2009-09-08),
8. 7328831 - Method of making a brazed metal article and the article formed thereby (2008-02-12),
9. 7316721 - Ceramic foam insulator with thermal expansion joint (2008-01-08),
10. 6977058 - Inoculant-strainer with improved filtration effectiveness and inoculant dissolution (2005-12-20),
11. 6913844 - Method for humidifying reactant gases for use in a fuel cell (2005-07-05),
12. 6773825 - Porous articles and method for the manufacture thereof (2004-08-10),
13. 6706239 - Method of co-forming metal foam articles and the articles formed by the method thereof (2004-03-16),
14. 6592787 - Porous articles and method for the manufacture thereof (2003-07-15),
15. 6235665 - Porous ceramic articles (2001-05-22),
Porvair Corporation is a leading global designer and manufacturer of filtration and separation solutions. With a history dating back to 1982, the company serves various industries, including aerospace, energy, environmental, and industrial. Porvair Corporation's product range includes filters, membranes, absorbers, and other specialized solutions that help customers achieve efficient separation and purification processes. With a commitment to innovation and quality, Porvair Corporation continues to meet the filtration needs of diverse applications worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

26 Patents

#1 in Hendersonville, NC

#291 in North Carolina

#12,424 in US

#24,051 in the World

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Hendersonville, NC, United States of America

Porvair Corporation

Forward Citations = 552

37 inventors:

goldMedal Leonard S Aubrey (8 out of 10 patents)

silverMedal Kenneth R Butcher (4 out of 17 patents)

bronzeMedal Rudolph A Olson, Iii (3 out of 7 patents)

4.  Feng Chi (3 out of 3 patents)

5.  David P Haack (3 out of 3 patents)

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