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For the Inventor, By the Inventor

Indianapolis, IN, United States of America

Bfs Diversified Products, LLC


USPTO Granted Patents = 76

% Expired Patents = 34.2



Trademarks = 15

Forward Citations = 999

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68 inventors (with patents filed for the assignee):

goldMedal Joshua R Leonard (13 out of 67 patents)

silverMedal Daniel L Nordmeyer (13 out of 17 patents)

bronzeMedal Graham R Brookes (6 out of 32 patents)

4.  Daniel I Levy (5 out of 9 patents)

5.  John B Letts (4 out of 34 patents)

6.  Pradipta N Moulik (4 out of 29 patents)

7.  Joseph John Kalwara (4 out of 27 patents)

8.  Michael J Hubbard (3 out of 84 patents)

9.  Daniel Leon Barksdale (3 out of 14 patents)

10.  Stephen R Egolf (3 out of 7 patents)

11.  Daniel J Leonard (3 out of 10 patents)

12.  Robert F Elliott (3 out of 7 patents)

13.  Stephen C Street (2 out of 27 patents)

14.  Lichih Peng (2 out of 3 patents)

15.  Russell W Koch (2 out of 69 patents)


Core Competencies:
Air Spring Assembly
Vehicle Suspension
Roofing Membrane
Fluid Suspension Member
Distance Indicating System
Self-Adhering Membrane
Thermoplastic Roofing
Jounce Bumper
Insulation Boards
Pneumatic Actuator
Multi-Layer Co-Extruded
Weight Sensing System

76 patents:

1. 8061691 - Piston and gas spring assembly including same (2011-11-22),
2. 7959138 - Air spring assembly with non-threaded connection (2011-06-14),
3. 7959137 - Distance indicating system and method (2011-06-14),
4. 7959136 - Sensing and communication system and method (2011-06-14),
5. 7927451 - Method of making a building material having a selvage edge (2011-04-19),
6. 7896320 - Jounce bumper assembly and gas spring assembly including same (2011-03-01),
7. 7882671 - Multi-layer co-extruded roofing membrane (2011-02-08),
8. 7838568 - Insulation boards and methods for their manufacture (2010-11-23),
9. 7806391 - Self-indexing spacer for air spring assembly (2010-10-05),
10. 7776177 - Method for installing a roofing membrane (2010-08-17),
11. 7771807 - Self adhering membrane for roofing applications (2010-08-10),
12. 7766591 - Method of transporting roof construction panels (2010-08-03),
13. 7749924 - Thermoplastic roofing membranes (2010-07-06),
14. 7733239 - Distance determining system and method (2010-06-08),
15. 7644943 - Gas spring assembly (2010-01-12),
Company Overview
Bfs Diversified Products, LLC, based in Indianapolis, IN, specializes in advanced air spring technology, focusing on the development and manufacturing of innovative solutions for vehicle suspension systems. Their expertise extends to various applications, including air spring assemblies and fluid suspension members, enhancing vehicle performance and comfort. Additionally, the company is involved in roofing technologies, offering products such as self-adhering membranes and thermoplastic roofing solutions, contributing to durability and efficiency in construction.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

76 Patents

#21 in Indianapolis, IN

#88 in Indiana

#4,844 in US

#9,892 in the World

Indianapolis, IN (US)
Indianapolis, IN, United States of America

Bfs Diversified Products, LLC

Forward Citations = 999

68 inventors:

goldMedal Joshua R Leonard (13 out of 67 patents)

silverMedal Daniel L Nordmeyer (13 out of 17 patents)

bronzeMedal Graham R Brookes (6 out of 32 patents)

4.  Daniel I Levy (5 out of 9 patents)

5.  John B Letts (4 out of 34 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Bfs Diversified Products, LLC. Retrieved from https://idiyas.com/company/bfs-diversified-products

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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