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For the Inventor, By the Inventor

Charlotte, NC, United States of America

National Gypsum Company


USPTO Granted Patents = 155


Trademarks = 30

Forward Citations = 3,381

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86 inventors (with patents filed for the assignee):

goldMedal Robert J Menchetti (44 out of 45 patents)

silverMedal Daniel A Winkowski (9 out of 10 patents)

bronzeMedal Edward A Burkard (9 out of 9 patents)

4.  Joseph W Schneller (9 out of 10 patents)

5.  Richard E Smith (8 out of 12 patents)

6.  Robert M Chapman (8 out of 9 patents)

7.  Robert M Johnson (8 out of 8 patents)

8.  Ronald S Finkelstein (6 out of 8 patents)

9.  Donald A Kossuth (6 out of 6 patents)

10.  Matthew J Kessler (5 out of 6 patents)

11.  Jashbhai M Patel (5 out of 5 patents)

12.  Arthur E Kennedy (5 out of 5 patents)

13.  Edward J Rutkowski (5 out of 5 patents)

14.  Donald R Kole (5 out of 5 patents)

15.  Rodney A Stiling (5 out of 5 patents)


Core Competencies:
Gypsum Board
Joint Compound
Cementitious Compositions
Wall Assembly
Framing Components
Structural Members
Panel Manufacturing
Reinforced Edges
Veneer Plaster
Corner Clips
Humectants
Acid Rain Neutralization

155 patents:

1. 6221151 - Gypsum set accelerator and method of making the same (2001-04-24),
2. 6200380 - Method for continuous production for wallboard tape joint compound (2001-03-13),
3. 6187409 - Cementitious panel with reinforced edges (2001-02-13),
4. 6061995 - Composite structural member and wall assembly method (2000-05-16),
5. 5879825 - Gypsum wallboard and method of making same (1999-03-09),
6. 5879486 - Methods of manufacturing gypsum board and board made therefrom (1999-03-09),
7. 5879446 - Gypsum wallboard, and method of making same (1999-03-09),
8. 5858083 - Cementitious gypsum-containing binders and compositions and materials (1999-01-12),
9. 5779786 - Ready mixed setting-type joint compound, and method of making same (1998-07-14),
10. 5749192 - Corner clips for horizonal framing (1998-05-12),
11. 5740644 - Wall with horizontal metal stud and reinforcement channel therefor (1998-04-21),
12. 5729945 - Wall structure and method of securing framing members to wallboards with (1998-03-24),
13. 5724784 - Shaft wall and horizontal metal stud therefor (1998-03-10),
14. 5722626 - Reusable riser (1998-03-03),
15. 5718797 - Apparatus for manufacturing gypsum board (1998-02-17),
National Gypsum Company is a leading manufacturer of gypsum board, interior finishing products, and cement board. With a commitment to sustainable practices, National Gypsum is known for delivering innovative and high-quality solutions to the construction industry. The company offers a wide range of gypsum products for residential, commercial, and industrial applications, backed by a strong dedication to customer service. Visit their website for more information and to explore their extensive product catalog.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 2 2025

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155 Patents

#17 in Charlotte, NC

#64 in North Carolina

#2,468 in US

#5,138 in the World

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Charlotte, NC, United States of America

National Gypsum Company

Forward Citations = 3,381

86 inventors:

goldMedal Robert J Menchetti (44 out of 45 patents)

silverMedal Daniel A Winkowski (9 out of 10 patents)

bronzeMedal Edward A Burkard (9 out of 9 patents)

4.  Joseph W Schneller (9 out of 10 patents)

5.  Richard E Smith (8 out of 12 patents)

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