For the Inventor, By the Inventor

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Malvern, PA, United States of America

Certainteed Corporation

USPTO Granted Patents = 941

% Expired Patents = 19.0

CIPO Patents = 28

EPO Patents = 12

Trademarks = 24

Forward Citations = 16,848

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439 inventors (with patents filed for the assignee):

Husnu M Kalkanoglu (162 out of 164 patents)

Dennis C Westphal (159 out of 164 patents)

Gregory F Jacobs (154 out of 187 patents)

4. Robert L Jenkins (94 out of 96 patents)

5. Jerome Carl Habeck (94 out of 95 patents)

6. Stanley M Gursky (72 out of 73 patents)

7. Ming Liang Shiao (69 out of 69 patents)

8. Stephen William Steffes (62 out of 64 patents)

9. Robert David Shaw (60 out of 62 patents)

10. David J Stucky (59 out of 59 patents)

11. David S Levine (56 out of 57 patents)

12. Kermit E Stahl (51 out of 51 patents)

13. Michael J Noone (48 out of 53 patents)

14. Keith C Hong (44 out of 46 patents)

15. Jonathan Piles (44 out of 46 patents)

Core Competencies:

Building Surface Panels

Roofing Shingles

Siding Systems

Insulation Materials

Bio-Based Asphalt

Photovoltaic Roofing

Vapor Retarding Membranes

Algae-Resistant Granules

Hollow Panels

Panel Assembly

Thermoplastic Structures

Decorative Siding

941 patents: Sort by Forward Citations

1. D1132465 - Siding panel (2026-06-30),

2. D1127567 - Attachment piece and clip assembly (2026-05-26),

3. 12618243 - Siding attachment accessory and siding system (2026-05-05),

4. D1120389 - Shingle (2026-03-24),

5. D1115071 - Shingle (2026-02-24),

6. 12492561 - Building surface panels with foam backing and method of manufacture (2025-12-09),

7. 12492556 - Roofing shingles, tiles and shakes (2025-12-09),

8. 12486672 - Siding panel with varying profile and siding system (2025-12-02),

9. 12442194 - Building surface panels with aged foam backing and method of manufacture (2025-10-14),

10. 12421732 - Flat siding panel and panel siding system (2025-09-23),

11. 12421730 - Attachment clip for building surface panels and building surface panel system (2025-09-23),

12. D1092790 - Attachment piece (2025-09-09),

13. 12398564 - Roofing system and method of installation (2025-08-26),

14. 12391803 - Silicone-coated mineral wool insulation materials and methods for making and using them (2025-08-19),

15. 12338627 - Roofing shingles and palleted pluralities thereof (2025-06-24),

CertainTeed Corporation is a leading North American manufacturer of building materials including roofing, insulation, vinyl siding, and other construction products. With a heritage of over 110 years, the company is committed to providing innovative and sustainable solutions for residential and commercial projects. CertainTeed offers a wide range of high-quality products that meet the highest industry standards and provide exceptional performance, durability, and aesthetics. By combining advanced technology and expertise, the company delivers products that enhance comfort, energy efficiency, and overall building performance. Whether you are a homeowner, contractor, or architect, CertainTeed offers reliable and trusted solutions to meet your specific needs.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Certainteed Corporation

941 Patents

#2 in Malvern, PA

#28 in Pennsylvania

#552 in US

#1,082 in the World

Malvern, PA, United States of America

Certainteed Corporation

Forward Citations = 16,848

439 inventors:

Husnu M Kalkanoglu (162 out of 164 patents)

Dennis C Westphal (159 out of 164 patents)

Gregory F Jacobs (154 out of 187 patents)

4. Robert L Jenkins (94 out of 96 patents)

5. Jerome Carl Habeck (94 out of 95 patents)

Please report any incorrect information to [email protected]

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