For the Inventor, By the Inventor

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Boston, MA, United States of America

Pneumo Corporation

USPTO Granted Patents = 61

Forward Citations = 773

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35 inventors (with patents filed for the assignee):

Robert D Vanderlaan (16 out of 21 patents)

James N Tootle (8 out of 11 patents)

Louis C Hrusch (6 out of 7 patents)

4. Dan O Bauer (5 out of 7 patents)

5. Eugene J Martin (5 out of 7 patents)

6. John W Meulendyk (4 out of 4 patents)

7. Michael A Pauwels (4 out of 4 patents)

8. Robert M Salemka (3 out of 3 patents)

9. Charles D Bradley, Jr (3 out of 4 patents)

10. Terry L Benton (3 out of 7 patents)

11. William H Schwagerman (2 out of 3 patents)

12. Richard P Heintz (2 out of 8 patents)

13. Jack M Brandstadter (2 out of 6 patents)

14. William Dirkin (2 out of 9 patents)

15. Duane Douglass (2 out of 3 patents)

Core Competencies:

Fluid Actuators

Torque Motors

Landing Gear Mechanisms

Control Valves

Servo Systems

Pressure Vessels

Transducers

Hydraulic Systems

Actuator Control

Thermocouples

Direct Drive Valves

Composite Cylinders

61 patents: Sort by Forward Citations

1. 4841844 - Fluid actuators with LVDT feedback mechanisms (1989-06-27),

2. 4816707 - Limited angle torque motor with wide rotation poles (1989-03-28),

3. 4729529 - Landing gear mechanism including bypass valve assembly for reducing (1988-03-08),

4. 4714006 - Fluid actuator with feedback mechanism (1987-12-22),

5. 4697499 - Dual tandem composite cylinder assembly (1987-10-06),

6. 4685589 - Composite pressure vessel including a fluid port directly through the (1987-08-11),

7. 4685384 - Fluid actuator including composite cylinder assembly (1987-08-11),

8. 4672992 - Direct drive valve-ball drive mechanism (1987-06-16),

9. 4646786 - Fluid control valves with angled metering ports (1987-03-03),

10. 4641812 - Direct drive valve and force motor assembly including interchangeable (1987-02-10),

11. 4627467 - Pilot operated directional control valve (1986-12-09),

12. 4619288 - Adjustable transducer and lock mechanism for monitoring valve position (1986-10-28),

13. 4612526 - Torque motor with high torque poles and magnetic centering spring (1986-09-16),

14. 4600910 - Limited angle torque motor with high torque output multiple coils and (1986-07-15),

15. 4596970 - Limited angle torque motor with high stiffness and natural frequency (1986-06-24),

Company Overview

Pneumo Corporation, based in Boston, MA, specializes in the development and manufacturing of advanced fluid actuation systems. The company focuses on a range of core technologies, including fluid actuators, torque motors, and hydraulic systems, which are integral to various applications such as landing gear mechanisms and control valves. Pneumo's expertise in servo systems and pressure vessels positions it as a key player in the aerospace and industrial sectors, driving innovation in fluid dynamics and actuation technologies.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

61 Patents

#44 in Boston, MA

#335 in Massachusetts

#5,914 in US

#11,923 in the World

Boston, MA, United States of America

Pneumo Corporation

Forward Citations = 773

35 inventors:

Robert D Vanderlaan (16 out of 21 patents)

James N Tootle (8 out of 11 patents)

Louis C Hrusch (6 out of 7 patents)

4. Dan O Bauer (5 out of 7 patents)

5. Eugene J Martin (5 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Pneumo Corporation. Retrieved from https://idiyas.com/company/pneumo

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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