For the Inventor, By the Inventor

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Grand Rapids, MI, United States of America

Innerspace Corporation

USPTO Granted Patents = 24

% Expired Patents = 8.3

Trademarks = 3

Forward Citations = 489

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8 inventors (with patents filed for the assignee):

Calvin A Gongwer (19 out of 36 patents)

Donald Eugene Bobo, Sr (2 out of 12 patents)

Robert C Gongwer (2 out of 2 patents)

4. Donald E Bobo, Jr (1 out of 40 patents)

5. David Robbins Asbury (1 out of 5 patents)

6. Ronald A Marino (1 out of 4 patents)

7. Thomas H Doupe (1 out of 1 patent)

8. Douglas R Elsie (1 out of 1 patent)

24 patents: Sort by Forward Citations

1. 8360988 - Catheter air management system (2013-01-29),

2. 7319398 - Reconfigurable and replaceable RFID antenna network (2008-01-15),

3. 7264519 - Safe efficient outboard motor assembly (2007-09-04),

4. D539423 - Medical instrument holder (2007-03-27),

5. 6575109 - Thruster screen (2003-06-10),

6. 6152793 - Screen system for marine thrusters (2000-11-28),

7. 5666012 - Rotating shaft seal (1997-09-09),

8. 5586555 - Blood pressure monitoring pad assembly and method (1996-12-24),

9. 5573007 - Gas column pressure monitoring catheters (1996-11-12),

10. 5275535 - Ortho skew propeller blade (1994-01-04),

11. 5072579 - Marine vessel thruster (1991-12-17),

12. 4925185 - Exercise method (1990-05-15),

13. 4834364 - Exercise pole with cross members (1989-05-30),

14. 4735045 - Limited discharge bidirectional thruster and method of operation (1988-04-05),

15. 4726183 - Self retracting screens for turbomachinery (1988-02-23),

Innerspace Corporation is a leading provider of innovative storage solutions for businesses, offering a wide range of products including shelving, cabinets, and mobile storage systems. With a focus on maximizing space efficiency and organization, Innerspace helps companies optimize their storage capabilities to improve productivity and reduce clutter. With a commitment to quality and customer satisfaction, Innerspace Corporation is dedicated to delivering high-quality, customizable storage solutions that meet the unique needs of each client.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

24 Patents

#30 in Grand Rapids, MI

#504 in Michigan

#13,849 in US

#26,576 in the World

Grand Rapids, MI, United States of America

Innerspace Corporation

Forward Citations = 489

8 inventors:

Calvin A Gongwer (19 out of 36 patents)

Donald Eugene Bobo, Sr (2 out of 12 patents)

Robert C Gongwer (2 out of 2 patents)

4. Donald E Bobo, Jr (1 out of 40 patents)

5. David Robbins Asbury (1 out of 5 patents)

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