For the Inventor, By the Inventor

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Houston, TX, United States of America

Rectorseal, LLC

USPTO Granted Patents = 29

% Expired Patents = 13.8

Trademarks = 71

Forward Citations = 451

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33 inventors (with patents filed for the assignee):

Eva Ackerman (5 out of 5 patents)

Henry J Gohlke (5 out of 6 patents)

Zhengyi Xu (4 out of 4 patents)

4. Yanwei Cen (3 out of 3 patents)

5. Kevin Huber (3 out of 3 patents)

6. Duane R Condon (2 out of 53 patents)

7. Mark Oudshoorn (2 out of 16 patents)

8. Robert Dean Sells (2 out of 3 patents)

9. Michael A Moore (2 out of 12 patents)

10. Zheng-Yi Xu (2 out of 2 patents)

11. Robert Alan Martinelli (2 out of 2 patents)

12. William Francis Flynn (2 out of 2 patents)

13. Richard Garza (2 out of 2 patents)

14. Christopher Ralph Cantolino (2 out of 39 patents)

15. Jianmin Li (2 out of 3 patents)

Core Competencies:

Capacitor

Inline Air Filter

Drain Stopper

Nesting Support Pads

Fire Protection

HVAC Mini-Split

Heat Exchanger

Air Admittance Valve

Cable Clamping

Intumescent Collar

Refrigerant Compressor

Flush Valve

29 patents: Sort by Forward Citations

1. D1145708 - Capacitor (2026-09-01),

2. 12687316 - Inline air filter apparatuses, systems and methods (2026-07-21),

3. 12668961 - Drain stopper and strainer (2026-06-30),

4. 12129647 - Line set cover (2024-10-29),

5. 11421913 - Nesting molded equipment support pads (2022-08-23),

6. 10962256 - Nesting molded equipment support pads (2021-03-30),

7. 10323857 - Coupling harness for HVAC mini-split system (2019-06-18),

8. 10323411 - Systems and methods for assisting in reducing the spread of fire, smoke or heat in a building (2019-06-18),

9. 10113754 - Apparatus for temporarily holding an evaporator/fan unit of a ductless mini-split HVAC system proximate to a wall (2018-10-30),

10. 9772113 - Apparatus and methods for temporarily holding the evaporator/fan unit of a ductless mini-split HVAC system proximate to a wall (2017-09-26),

11. 9416986 - Valve for roof vent (2016-08-16),

12. 9139991 - Floor drain valve with resiliently mounted rigid flappers (2015-09-22),

13. 9038405 - Solid state control system (2015-05-26),

14. 9010363 - Drain valve (2015-04-21),

15. 8887392 - Apparatus and methods for connecting a drain pan overflow sensor to a ductless mini-split HVAC system (2014-11-18),

RectorSeal, LLC is a prominent manufacturer based in Houston, Texas, specializing in a diverse range of products for the HVAC, plumbing, and electrical industries. The company is known for its innovative solutions, including sealants, adhesives, and specialty chemicals that enhance system performance and reliability. With a focus on quality and efficiency, RectorSeal serves both residential and commercial markets, contributing to improved safety and functionality in various applications across North America and beyond.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Rectorseal, LLC

29 Patents

#177 in Houston, TX

#639 in Texas

#11,606 in US

#22,510 in the World

Houston, TX, United States of America

Rectorseal, LLC

Forward Citations = 451

33 inventors:

Eva Ackerman (5 out of 5 patents)

Henry J Gohlke (5 out of 6 patents)

Zhengyi Xu (4 out of 4 patents)

4. Yanwei Cen (3 out of 3 patents)

5. Kevin Huber (3 out of 3 patents)

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