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For the Inventor, By the Inventor

Wixom, MI, United States of America

Mac Valves, Inc.


USPTO Granted Patents = 80



Trademarks = 13

Forward Citations = 591

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25 inventors (with patents filed for the assignee):

goldMedal James A Neff (33 out of 35 patents)

silverMedal Kevin C Williams (15 out of 15 patents)

bronzeMedal Jeffrey S Simmonds (15 out of 15 patents)

4.  Robert H Neff (12 out of 12 patents)

5.  Eric Paul Janssen (10 out of 10 patents)

6.  Brett Landacre (9 out of 9 patents)

7.  Richard A Fagerlie (8 out of 9 patents)

8.  Matthew Neff (7 out of 7 patents)

9.  Michael Jamison (6 out of 8 patents)

10.  Gilles Beaulieu (5 out of 6 patents)

11.  Michael E Robert (4 out of 13 patents)

12.  Thomas R Jones (4 out of 4 patents)

13.  Jeffrey Simmonds (3 out of 3 patents)

14.  David M Sobka, Jr (2 out of 2 patents)

15.  Joseph Richardson (2 out of 2 patents)


Core Competencies:
Quad Ring Seal
Pilot Valve
Three-Way Valve
Proportional Flow Control
Solenoid Pump
Digital Proportional Pressure Controller
Diaphragm Valve
Pneumatic Control Valve
Multi-Port Modular Valve
Pressure Balanced Valve
Stepper Motor Operated Valve
Fluid Control Assembly

80 patents:

1. 12467542 - Valve having a quad ring seal (2025-11-11),
2. 12152700 - Pilot valve having diaphragm (2024-11-26),
3. 12104704 - Three-way valve (2024-10-01),
4. 11976734 - Proportional flow control valve (2024-05-07),
5. 11859729 - Proportional solenoid valve (2024-01-02),
6. 11779872 - Pulse valve (2023-10-10),
7. 11248715 - Proportional solenoid valve (2022-02-15),
8. 11067102 - Digital proportional pressure controller (2021-07-20),
9. 11028837 - Solenoid pump (2021-06-08),
10. 10935153 - Proportional flow control valve poppet with flow control needle (2021-03-02),
11. 10808860 - Latching pneumatic control valve (2020-10-20),
12. 10774943 - Modular valve with O-ring valve set (2020-09-15),
13. 10753498 - Flow-through liquid valve (2020-08-25),
14. 10731677 - Pneumatic control valve manifold (2020-08-04),
15. 10711915 - Pilot actuated control pilot for operating valve (2020-07-14),
MAC Valves, Inc. is a leading manufacturer of air valves, proportional valves, and electrical components for a wide range of industries. With over 70 years of experience, MAC Valves is known for their high-quality, reliable products that are used in applications such as automotive, packaging, and industrial automation. Their website provides detailed information about their products, applications, and services.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 23 2025

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80 Patents

#2 in Wixom, MI

#166 in Michigan

#4,433 in US

#9,062 in the World

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Wixom, MI, United States of America

Mac Valves, Inc.

Forward Citations = 591

25 inventors:

goldMedal James A Neff (33 out of 35 patents)

silverMedal Kevin C Williams (15 out of 15 patents)

bronzeMedal Jeffrey S Simmonds (15 out of 15 patents)

4.  Robert H Neff (12 out of 12 patents)

5.  Eric Paul Janssen (10 out of 10 patents)

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