For the Inventor, By the Inventor

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Houston, TX, United States of America

Quanex Corporation

USPTO Granted Patents = 31

% Expired Patents = 32.3

Trademarks = 5

Forward Citations = 562

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33 inventors (with patents filed for the assignee):

James W Meeks (13 out of 21 patents)

Brian S Hewitt (6 out of 8 patents)

Brian D Jensen (6 out of 44 patents)

4. Joseph D Isaacs (5 out of 7 patents)

5. Michael E Pepper (5 out of 5 patents)

6. Ronald J Pich (4 out of 4 patents)

7. Jeffrey V Sawyers (4 out of 5 patents)

8. Robert C Martineau (3 out of 7 patents)

9. David C Bryant (3 out of 13 patents)

10. Scott M Fetting (3 out of 3 patents)

11. Robert E Daniels, Jr (3 out of 3 patents)

12. Jacob D Pichler (2 out of 2 patents)

13. Peter A Gunther (2 out of 2 patents)

14. Charles Joseph Librande (2 out of 2 patents)

15. John Paul Von Arx (2 out of 2 patents)

31 patents: Sort by Forward Citations

1. 9879472 - Frame assembly including a cornerlock (2018-01-30),

2. 9869122 - Cornerlock having a self configurable first body member (2018-01-16),

3. 9487992 - Threshold assembly for an entryway system (2016-11-08),

4. 8813427 - Threshold assembly having a rail and a drainage element (2014-08-26),

5. 8683771 - Adjustable frame assembly and method of assembling the adjustable frame assembly (2014-04-01),

6. 8555551 - Corner pad for a door assembly (2013-10-15),

7. 8528212 - Method of manufacturing a frame assembly having stile and rail tabs for coupling stile and rail members together (2013-09-10),

8. 8499523 - Frame assembly having stile and rail tabs for coupling stile and rail members together (2013-08-06),

9. 8291656 - Retention assembly for retaining a panel in a window or a door (2012-10-23),

10. 7878559 - Lock block assembly for an astragal (2011-02-01),

11. 7877940 - Entryway for disposition in a door opening of a building (2011-02-01),

12. 7861761 - Retractable screen and frame assembly (2011-01-04),

13. 7788863 - Astragal boot (2010-09-07),

14. 7752816 - Retention assembly for retaining a panel in a window or a door (2010-07-13),

15. 7694471 - Astragal boot (2010-04-13),

Quanex Corporation is a leading provider of engineered materials and components for the building products industry. With a diverse range of products, including windows, doors, and fenestration systems, Quanex serves residential and commercial customers worldwide. The company is known for its commitment to innovation, quality, and customer satisfaction.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

Quanex Corporation

31 Patents

#164 in Houston, TX

#597 in Texas

#10,900 in US

#21,195 in the World

Houston, TX, United States of America

Quanex Corporation

Forward Citations = 562

33 inventors:

James W Meeks (13 out of 21 patents)

Brian S Hewitt (6 out of 8 patents)

Brian D Jensen (6 out of 44 patents)

4. Joseph D Isaacs (5 out of 7 patents)

5. Michael E Pepper (5 out of 5 patents)

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