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For the Inventor, By the Inventor

Dallas, TX, United States of America

Weil-Mclain Co., Inc.

USPTO Granted Patents = 15

Trademarks = 1

Forward Citations = 285

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9 inventors (with patents filed for the assignee):

goldMedal Elmer M Deters (5 out of 9 patents)

silverMedal Trueman W Hiller (4 out of 5 patents)

bronzeMedal William N Rowley (4 out of 12 patents)

4.  Gordon F Ehret (4 out of 13 patents)

5.  Klaus D Jarr (3 out of 3 patents)

6.  Gerald C Smith (1 out of 1 patent)

7.  John D Woodford (1 out of 1 patent)

8.  A Carl Schmidt (1 out of 1 patent)

9.  Robert R Williams (1 out of 3 patents)


15 patents:

1. 4056133 - Fluid flow control apparatus and a gasoline dispensing and vapor (1977-11-01),
2. 4043917 - Liquid filter apparatus (1977-08-23),
3. 4019836 - Plastic motor-pump base for a submersible pump unit (1977-04-26),
4. 3990261 - Air conditioning unit (1976-11-09),
5. 3981335 - Liquid dispensing and vapor recovery system utilizing an injector and a (1976-09-21),
6. 3981334 - Liquid dispensing and vapor recovery system utilizing an injector and an (1976-09-21),
7. 3976131 - Pitless adapter with pressurized seal (1976-08-24),
8. 3966363 - Pumping assembly (1976-06-29),
9. 3962675 - Underwater floodlight assembly (1976-06-08),
10. 3958894 - Fluid pumping assembly of a molded synthetic material (1976-05-25),
11. 3956903 - System for recovering and condensing vapors (1976-05-18),
12. 3952781 - Liquid dispensing and vapor recovery system and a vapor flow control (1976-04-27),
13. 3952218 - Grounded electrical connector for submersible apparatus (1976-04-20),
14. 3941168 - Liquid dispensing and vapor recovery system utilizing an injector and a (1976-03-02),
15. 3938352 - Water to air heat pump employing an energy and condensate conservation (1976-02-17),
Company Overview
Weil-McLain Co., Inc. is a prominent manufacturer specializing in heating and cooling solutions, particularly known for its innovative boilers and water heaters. The company focuses on delivering high-efficiency products that cater to both residential and commercial markets. With a commitment to sustainability and energy efficiency, Weil-McLain integrates advanced technologies into its offerings, ensuring reliable performance and comfort. Headquartered in Dallas, Texas, the company serves a diverse clientele across North America.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

15 Patents

#138 in Dallas, TX

#1,298 in Texas

#21,068 in US

#39,959 in the World

Dallas, TX (US)
Dallas, TX, United States of America

Weil-Mclain Co., Inc.

Forward Citations = 285

9 inventors:

goldMedal Elmer M Deters (5 out of 9 patents)

silverMedal Trueman W Hiller (4 out of 5 patents)

bronzeMedal William N Rowley (4 out of 12 patents)

4.  Gordon F Ehret (4 out of 13 patents)

5.  Klaus D Jarr (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Weil-Mclain Co., Inc.. Retrieved from https://idiyas.com/company/weil-mclain-company

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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