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For the Inventor, By the Inventor

Southfield, MI, United States of America

Proprietary Technology, Inc.


USPTO Granted Patents = 97

Forward Citations = 2,448

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1 inventor (with patents filed for the assignee):

goldMedal Donald D Bartholomew (98 out of 108 patents)


Core Competencies:
Quick Connector
Coupling Methods
Connection Verification
Swivelable Connectors
Fluid Coupling
Hose Assembly
Tubing Attachments
Dynamic Wall
Sealing Devices
Automotive Systems
Structural Rigidity
Shock Absorbing

97 patents:

1. 6234544 - Quick connector with confirmation feature (2001-05-22),
2. 6170886 - Quick connector (2001-01-09),
3. 6086113 - Means of coupling of non-threaded connections (2000-07-11),
4. 6062607 - Quick connector with secondary latch confirming feature (2000-05-16),
5. 6014884 - Method of bending tubing (2000-01-18),
6. 6010160 - Quick connector having ring for confirming proper connection (2000-01-04),
7. 5992903 - Swivelable quick connector assembly (1999-11-30),
8. 5964484 - Swivelable quick connector assembly (1999-10-12),
9. 5931509 - Connection verification and secondary latch device (1999-08-03),
10. 5927761 - Means of coupling of non-threaded connections (1999-07-27),
11. 5868435 - Apparatus for and method of attaching conduits to a fitting (1999-02-09),
12. 5853204 - Means of coupling non-threaded connections (1998-12-29),
13. 5826920 - Conduit coupling (1998-10-27),
14. 5794984 - Quick connector (1998-08-18),
15. 5779279 - Connection verification and secondary latch device (1998-07-14),
Company Overview
Proprietary Technology, Inc., based in Southfield, MI, specializes in the development and manufacturing of innovative quick connectors and coupling methods. The company focuses on enhancing connection verification, fluid coupling, and hose assembly technologies, providing solutions that ensure reliability and efficiency in various applications. With expertise in swivelable connectors and dynamic wall designs, Proprietary Technology, Inc. serves diverse industries, contributing to advancements in fluid management and connection systems.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

97 Patents

#13 in Southfield, MI

#151 in Michigan

#3,887 in US

#7,981 in the World

Southfield, MI (US)
Southfield, MI, United States of America

Proprietary Technology, Inc.

Forward Citations = 2,448

1 inventor:

goldMedal Donald D Bartholomew (98 out of 108 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Proprietary Technology, Inc.. Retrieved from https://idiyas.com/company/proprietary-technology

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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