For the Inventor, By the Inventor

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Des Plaines, IL, United States of America

Symons Corporation

Calculating rank

USPTO Granted Patents = 44

% Expired Patents = 6.8

Trademarks = 7

Forward Citations = 707

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30 inventors (with patents filed for the assignee):

Vernon R Schimmel (9 out of 9 patents)

David L Cody (6 out of 6 patents)

Robert J Flathau (5 out of 10 patents)

4. Michael J Miller (5 out of 5 patents)

5. Frank T Connors (4 out of 4 patents)

6. John J Hambelton (3 out of 3 patents)

7. Manuel Lopez (3 out of 3 patents)

8. Hal C Shook (3 out of 6 patents)

9. Robert A Spindler (2 out of 5 patents)

10. Alan E Soltysik (2 out of 2 patents)

11. John F Gourley (2 out of 2 patents)

12. Randy J Musk (1 out of 1 patent)

13. Edward Rahe (1 out of 1 patent)

14. Manny Lopez (1 out of 1 patent)

15. Bryant Bird, Jr (1 out of 1 patent)

Core Competencies:

Concrete Formwork

Flexible Tie System

Modular Form System

Safety Mechanisms

Adjustable Shoring

Waler Bracket

Transition Strip

Overhanging Form

Concrete Wall Form

Multi-Purpose Structures

Load-Bearing Structure

Curved Walls

44 patents: Sort by Forward Citations

1. 6951329 - Concrete wall form with flexible tie system (2005-10-04),

2. 6755387 - Transition strip for disparate concrete forms (2004-06-29),

3. 6715729 - Overhanging form system and method of using the same (2004-04-06),

4. 6676102 - Adjustable modular form system and method for rectilinear concrete column form (2004-01-13),

5. 6605240 - Over the top hinged concrete form and method of using the same (2003-08-12),

6. 6361014 - Concrete form waler bracket (2002-03-26),

7. 6182346 - Method of retrofitting a concrete form (2001-02-06),

8. 5816562 - Sand jack apparatus (1998-10-06),

9. 5707539 - Concrete form with safety bar (1998-01-13),

10. 5656193 - Pilaster form (1997-08-12),

11. 5616271 - Concrete forming chamfer strip (1997-04-01),

12. 5562845 - Concrete form and self-contained waler clamp assembly (1996-10-08),

13. 5316253 - Scaffold bracket (1994-05-31),

14. 5261635 - Slab joint system and apparatus for joining concrete slabs in (1993-11-16),

15. D323716 - Bridge overhang support bracket (1992-02-04),

Company Overview

Symons Corporation, headquartered in Des Plaines, IL, specializes in innovative concrete formwork solutions. The company develops a range of products including concrete wall forms, flexible tie systems, and modular form systems, catering to the construction industry. Their offerings also encompass safety bars, scaffold brackets, and adjustable shoring, designed to enhance safety and efficiency on job sites. With a focus on multi-purpose formwork, Symons Corporation is committed to advancing construction technology and supporting builders in achieving high-quality results.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

44 Patents

#7 in Des Plaines, IL

#438 in Illinois

#7,963 in US

#15,771 in the World

Des Plaines, IL, United States of America

Symons Corporation

Forward Citations = 707

30 inventors:

Vernon R Schimmel (9 out of 9 patents)

David L Cody (6 out of 6 patents)

Robert J Flathau (5 out of 10 patents)

4. Michael J Miller (5 out of 5 patents)

5. Frank T Connors (4 out of 4 patents)

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

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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