% Expired Patents = 9.1

Trademarks = 1

Forward Citations = 317

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4 inventors (with patents filed for the assignee):

Justin C White (6 out of 6 patents)

Tom L Pierson (5 out of 9 patents)

William H Sayler (5 out of 5 patents)

4. John David Penton (2 out of 7 patents)

11 patents: Sort by Forward Citations

1. RE44079 - Method of chilling inlet air for gas turbines (2013-03-18),

2. 7827791 - Advanced power recovery and energy conversion systems and methods of using same (2010-11-09),

3. 7343746 - Method of chilling inlet air for gas turbines (2008-03-18),

4. 6964168 - Advanced heat recovery and energy conversion systems for power generation and pollution emissions reduction, and methods of using same (2005-11-15),

5. 6848267 - Packaged chilling systems for building air conditioning and process cooling (2005-02-01),

6. 5139749 - Fluidized calcining process (1992-08-18),

7. 4780291 - Process for removing sulfur gases from a combustion gas (1988-10-25),

8. 4749133 - Apparatus for the pulverization and burning of solid fuels (1988-06-07),

9. 4690338 - Solid fuel pulverizer for pulverized fuel burning system (1987-09-01),

10. 4630554 - Pulverized solid fuel burner and method of firing pulverized fuel (1986-12-23),

11. 4531461 - Solid fuel pulverizing and burning system and method and pulverizer and (1985-07-30),

Company Overview

Tas, Ltd. is a Houston-based company specializing in advanced technology solutions for various industries, including energy, aerospace, and manufacturing. The organization focuses on developing innovative systems and products that enhance operational efficiency and safety. With a strong emphasis on research and development, Tas, Ltd. leverages cutting-edge technologies to address complex challenges in its sectors, contributing to the advancement of sustainable practices and improved performance across its service areas.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

11 Patents

#443 in Houston, TX

#1,726 in Texas

#27,529 in US

#51,801 in the World

Houston, TX, United States of America

Tas, Ltd.

Forward Citations = 317

4 inventors:

Justin C White (6 out of 6 patents)

Tom L Pierson (5 out of 9 patents)

William H Sayler (5 out of 5 patents)

4. John David Penton (2 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tas, Ltd.. Retrieved from https://idiyas.com/company/tas

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]