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Washington, MO, United States of America

Sporlan Valve Company

USPTO Granted Patents = 30

Trademarks = 6

Forward Citations = 518

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21 inventors (with patents filed for the assignee):

Joseph H Heffner (11 out of 11 patents)

Dennis L Hoehne (7 out of 7 patents)

G Thomas Seener (6 out of 6 patents)

4. David C Dorste (5 out of 5 patents)

5. Harold T Lange (4 out of 4 patents)

6. William J Barbier (4 out of 4 patents)

7. Michael G Lacey (3 out of 3 patents)

8. J George Leimbach (3 out of 3 patents)

9. Michael A Noelke (1 out of 3 patents)

10. Stephen P Pilgram (1 out of 1 patent)

11. David P Wrocklage (1 out of 1 patent)

12. David C Macke, Sr (1 out of 6 patents)

13. Richard A Livingston (1 out of 2 patents)

14. Roger Dean Chamberlain (1 out of 56 patents)

15. Harold T Lange, Sr (1 out of 1 patent)

30 patents: Sort by Forward Citations

1. 6852150 - Molded core filter drier (2005-02-08),

2. 6835236 - Molded core filter drier with filter media molded to core (2004-12-28),

3. 6835235 - Molded core filter drier with filter media molded to core for use in heat pump systems (2004-12-28),

4. 6568656 - Flow control valve with lateral port balancing (2003-05-27),

5. 6125642 - Oil level control system (2000-10-03),

6. 5832744 - Distributor for refrigeration system (1998-11-10),

7. 5524819 - Expansion and check valve combination (1996-06-11),

8. 5440898 - Filter-dryer unit (1995-08-15),

9. 5423480 - Dual capacity thermal expansion valve (1995-06-13),

10. 5364066 - Dual port valve with stepper motor actuator (1994-11-15),

11. 5277364 - Dual capacity thermal expansion valve (1994-01-11),

12. 5238219 - Thermostatic expansion valve (1993-08-24),

13. 5232015 - Expansion valve with inlet strainer (1993-08-03),

14. 5148684 - Injection valve for a refrigeration system (1992-09-22),

15. 5065595 - Thermostatic expansion valve (1991-11-19),

Sporlan Valve Company is a leading manufacturer of HVACR (Heating, Ventilation, Air Conditioning, and Refrigeration) control components and systems. With a rich history dating back to 1931, Sporlan has been providing innovative solutions for the industry. Their product range includes pressure regulating valves, thermostatic expansion valves, solenoid valves, filter driers, and more. Sporlan focuses on delivering high-quality products that ensure efficient and reliable operation in various HVACR applications. They are committed to customer satisfaction and offer exceptional technical support to assist with product selection and system design.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

30 Patents

#1 in Washington, MO

#148 in Missouri

#10,859 in US

#21,180 in the World

Washington, MO, United States of America

Sporlan Valve Company

Forward Citations = 518

21 inventors:

Joseph H Heffner (11 out of 11 patents)

Dennis L Hoehne (7 out of 7 patents)

G Thomas Seener (6 out of 6 patents)

4. David C Dorste (5 out of 5 patents)

5. Harold T Lange (4 out of 4 patents)

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