For the Inventor, By the Inventor

Enter assignee name

Skokie, IL, United States of America

Midland Manufacturing Limited

USPTO Granted Patents = 23

CIPO Patents = 1

Forward Citations = 341

Loading Chart...

Loading Chart...

14 inventors (with patents filed for the assignee):

Robert H Dean (9 out of 14 patents)

Ralph G Portis (5 out of 6 patents)

Gaston C Barmore, Jr (5 out of 5 patents)

4. John J White (3 out of 3 patents)

5. Richard G Fenner (3 out of 3 patents)

6. Reece Robert Clark (3 out of 3 patents)

7. Leroy J Friesen (2 out of 2 patents)

8. Benjamin H Weese (2 out of 2 patents)

9. William X Culpepper (1 out of 1 patent)

10. Clyde D Ridgeway (1 out of 2 patents)

11. Carl J Campagna (1 out of 1 patent)

12. Jerzy Drazkowicz (1 out of 1 patent)

13. Norman A Magiera (1 out of 1 patent)

14. Joseph C Fiore (1 out of 1 patent)

23 patents: Sort by Forward Citations

1. 11142113 - Fracturing sand dump trailer (2021-10-12),

2. 6416133 - Control device for trailer gates (2002-07-09),

3. 5904870 - Laser lens heater (1999-05-18),

4. 5886642 - Tank barge interface (1999-03-23),

5. 5886312 - Switch level control for tank ullage determining system (1999-03-23),

6. 5874899 - Tank level gauge and sensor head therefor (1999-02-23),

7. 5648844 - Laser liquid level gauge with diffuser (1997-07-15),

8. 5585786 - Optical tank-level gauge (1996-12-17),

9. 5544675 - Frangible valve handle (1996-08-13),

10. 5394650 - Manway cover balancing mechanism (1995-03-07),

11. 5342026 - Valve including resilient mount for pin (1994-08-30),

12. 5340078 - Actuator for valve (1994-08-23),

13. 5269342 - T-fitting (1993-12-14),

14. 5257771 - Powered actuator for valve (1993-11-02),

15. 5194747 - Liquid level gauge comparing moldulations of incident and reflected (1993-03-16),

Midland Manufacturing Limited is a prominent player in the manufacturing sector, specializing in the production of high-quality industrial containers and tanks. The company focuses on providing innovative solutions for various industries, including chemical, petroleum, and water treatment sectors. With a commitment to engineering excellence, Midland develops products that meet stringent safety and regulatory standards, ensuring reliability and efficiency in storage and transportation applications. Headquartered in Skokie, Illinois, Midland serves a diverse clientele across North America.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

23 Patents

#14 in Skokie, IL

#749 in Illinois

#14,401 in US

#27,619 in the World

Skokie, IL, United States of America

Midland Manufacturing Limited

Forward Citations = 341

14 inventors:

Robert H Dean (9 out of 14 patents)

Ralph G Portis (5 out of 6 patents)

Gaston C Barmore, Jr (5 out of 5 patents)

4. John J White (3 out of 3 patents)

5. Richard G Fenner (3 out of 3 patents)

Please report any incorrect information to [email protected]

Loading…