% Expired Patents = 20.0

Forward Citations = 51

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6 inventors (with patents filed for the assignee):

Thomas J Bowers (5 out of 5 patents)

James D Parker (1 out of 4 patents)

Donald H Wiseman (1 out of 3 patents)

4. William C Weller (1 out of 1 patent)

5. Dean P Stefanac (1 out of 1 patent)

6. Chuck F Der (1 out of 3 patents)

5 patents: Sort by Forward Citations

1. 6620374 - Induction heat-treating of threaded fasteners with a rotary conveyor (2003-09-16),

2. 6437302 - Interruptible variable frequency power supply and load matching circuit, and method of design (2002-08-20),

3. 6255634 - Transverse flux heating coil and method of use (2001-07-03),

4. 6166933 - Snubber circuit for an inverter having inductively coupled resistance (2000-12-26),

5. 6078033 - Multi-zone induction heating system with bidirectional switching network (2000-06-20),

Company Overview

Pillar Industries is a leading manufacturer of industrial equipment, specializing in quality tools and machinery for various industries. With a focus on innovation and efficiency, our products are designed to improve productivity and reduce downtime for our customers. Our extensive product line includes tools, machinery, and accessories for metalworking, woodworking, construction, and more. We are committed to providing durable and reliable solutions that meet the needs of our customers.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

5 Patents

#17 in Brookfield, WI

#1,089 in Wisconsin

#51,644 in US

Brookfield, WI, United States of America

Pillar Industries

Forward Citations = 51

6 inventors:

Thomas J Bowers (5 out of 5 patents)

James D Parker (1 out of 4 patents)

Donald H Wiseman (1 out of 3 patents)

4. William C Weller (1 out of 1 patent)

5. Dean P Stefanac (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Pillar Industries. Retrieved from https://idiyas.com/company/pillar-industries

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]