% Expired Patents = 8.3

EPO Patents = 1

Trademarks = 4

Forward Citations = 19

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4 inventors (with patents filed for the assignee):

David E Daw (12 out of 12 patents)

Cody B Umberger (9 out of 11 patents)

John T Ehling (3 out of 3 patents)

4. Michael C Borwig (2 out of 19 patents)

12 patents: Sort by Forward Citations

1. 12257618 - Apparatus and method for closing duct seams and for inserting angle plates and closing duct seams (2025-03-25),

2. 11697147 - Apparatus and method for forming duct flanges and duct work (2023-07-11),

3. 11213878 - Apparatus and method for forming duct flanges and duct work (2022-01-04),

4. 9937592 - Apparatus and method for placement of angle plates in transverse duct flanges (2018-04-10),

5. 9925627 - Apparatus and method for placement of angle plates in transverse duct flanges (2018-03-27),

6. 9545695 - Apparatus and method for placement of angle plates in transverse duct flanges (2017-01-17),

7. 9377213 - Apparatus and method for placement of angle plates in transverse duct flanges (2016-06-28),

8. 9157653 - Apparatus and method for inserting angle plates and closing duct seams (2015-10-13),

9. 9151513 - Apparatus and method for placement of angle plates in transverse duct flanges (2015-10-06),

10. 9027376 - Apparatus and method for inserting angle plates and closing duct seams (2015-05-12),

11. 8959755 - Apparatus and method for placement of angle plates in transverse duct flanges (2015-02-24),

12. 8875388 - Apparatus and method for placement of angle plates in transverse duct flanges (2014-11-04),

Company Overview

Hvac Inventors/Systemation, Inc. is a Houston-based company specializing in innovative solutions for the heating, ventilation, and air conditioning (HVAC) industry. The organization focuses on developing advanced technologies and systems that enhance energy efficiency, indoor air quality, and overall comfort in residential and commercial environments. With a commitment to research and development, it aims to address the evolving needs of the HVAC market through cutting-edge engineering and design.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

12 Patents

#415 in Houston, TX

#1,590 in Texas

#25,540 in US

#48,129 in the World

Houston, TX, United States of America

Hvac Inventors/systemation, Inc.

Forward Citations = 19

4 inventors:

David E Daw (12 out of 12 patents)

Cody B Umberger (9 out of 11 patents)

John T Ehling (3 out of 3 patents)

4. Michael C Borwig (2 out of 19 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hvac Inventors/systemation, Inc.. Retrieved from https://idiyas.com/company/hvac-inventors-systemation

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]

1 patent (EPO):

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]