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For the Inventor, By the Inventor

Malvern, PA, United States of America

Certainteed Corporation


USPTO Granted Patents = 942

% Expired Patents = 19.0



Trademarks = 24

Forward Citations = 16,848

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439 inventors (with patents filed for the assignee):

goldMedal Husnu M Kalkanoglu (162 out of 164 patents)

silverMedal Dennis C Westphal (159 out of 164 patents)

bronzeMedal 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

942 patents:

1. 12753607 - Algaecidal roofing granules, roofing products including them, and methods for making them (2026-10-06),
2. D1132465 - Siding panel (2026-06-30),
3. D1127567 - Attachment piece and clip assembly (2026-05-26),
4. 12618243 - Siding attachment accessory and siding system (2026-05-05),
5. D1120389 - Shingle (2026-03-24),
6. D1115071 - Shingle (2026-02-24),
7. 12492561 - Building surface panels with foam backing and method of manufacture (2025-12-09),
8. 12492556 - Roofing shingles, tiles and shakes (2025-12-09),
9. 12486672 - Siding panel with varying profile and siding system (2025-12-02),
10. 12442194 - Building surface panels with aged foam backing and method of manufacture (2025-10-14),
11. 12421732 - Flat siding panel and panel siding system (2025-09-23),
12. 12421730 - Attachment clip for building surface panels and building surface panel system (2025-09-23),
13. D1092790 - Attachment piece (2025-09-09),
14. 12398564 - Roofing system and method of installation (2025-08-26),
15. 12391803 - Silicone-coated mineral wool insulation materials and methods for making and using them (2025-08-19),
Company Overview
CertainTeed Corporation, headquartered in Malvern, PA, specializes in the development and manufacturing of building materials. The company offers a diverse range of products, including building surface panels, roofing shingles, siding systems, and insulation materials. CertainTeed is also known for its innovative solutions such as bio-based asphalt, photovoltaic roofing, vapor retarding membranes, and algae-resistant granules, contributing to sustainable building practices and enhancing energy efficiency in construction.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Certainteed Corporation USPTO Patent Assignee Logo
942 Patents

#2 in Malvern, PA

#28 in Pennsylvania

#553 in US

#1,086 in the World

Malvern, PA (US)
Malvern, PA, United States of America

Certainteed Corporation

Forward Citations = 16,848

439 inventors:

goldMedal Husnu M Kalkanoglu (162 out of 164 patents)

silverMedal Dennis C Westphal (159 out of 164 patents)

bronzeMedal 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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Certainteed Corporation. Retrieved from https://idiyas.com/company/certainteed

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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