% Expired Patents = 40.0

Forward Citations = 171

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5 inventors (with patents filed for the assignee):

Hartley Moyes (3 out of 14 patents)

Michael Windsor Symons (2 out of 24 patents)

Victor T Massey (2 out of 14 patents)

4. Matthew D White (1 out of 12 patents)

5. Joy Doiley (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 7263808 - Adjustable rail assembly for exterior door still assembly and components for the same (2007-09-04),

2. 7121045 - Pre-hanging clip for pre-hung door (2006-10-17),

3. 6986656 - Method of and system for forming a fire door core (2006-01-17),

4. 6773639 - Method of and system for forming a fire door core (2004-08-10),

5. 6643991 - Fire door and method of assembly (2003-11-11),

Company Overview

Premdor International, Inc. is a leading supplier of interior and exterior doors, doorsets, and associated joinery products. With a history dating back over 100 years, Premdor is known for its high-quality, innovative door solutions for residential and commercial properties. The company operates globally, serving customers in the construction industry with a wide range of door designs and finishes to suit various architectural styles and preferences.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

5 Patents

#3 in

#40 in Barbados

BB

Premdor International, Inc.

Forward Citations = 171

5 inventors:

Hartley Moyes (3 out of 14 patents)

Michael Windsor Symons (2 out of 24 patents)

Victor T Massey (2 out of 14 patents)

4. Matthew D White (1 out of 12 patents)

5. Joy Doiley (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Premdor International, Inc.. Retrieved from https://idiyas.com/company/premdor-international

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]