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For the Inventor, By the Inventor

Dayton, OH, United States of America

Vapor Systems Technologies, Inc.

USPTO Granted Patents = 20

% Expired Patents = 40.0

Trademarks = 1

Forward Citations = 330

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7 inventors (with patents filed for the assignee):

goldMedal Rodger P Grantham (20 out of 36 patents)

silverMedal Glenn K Walker (6 out of 8 patents)

bronzeMedal Ken Allen (2 out of 5 patents)

4.  Douglas Alan Harty (2 out of 2 patents)

5.  Gregg Marshel (2 out of 2 patents)

6.  Christopher S Spencer (1 out of 1 patent)

7.  Glen K Walker (1 out of 1 patent)


20 patents:

1. 12391540 - Pressure/vacuum (PV) valve for fuel storage tanks, in-line pressure-vacuum valve test unit, and combination thereof (2025-08-19),
2. 11795049 - Pressure/vacuum (PV) valve for fuel storage tanks, in-line pressure-vacuum valve test unit, and combination thereof (2023-10-24),
3. 8997804 - Nozzle interlock failsafe/lost motion mechanisms (2015-04-07),
4. 8434531 - Fuel dispensing nozzle hold open clip release assembly (2013-05-07),
5. 8286677 - Fuel dispensing nozzle hold open clip release assembly (2012-10-16),
6. 7509982 - Vapor recovery system with improved ORVR compatibility and performance (2009-03-31),
7. 7270154 - Fuel storage and dispensing system (2007-09-18),
8. 7174926 - Vapor recovery system with improved ORVR compatibility and performance (2007-02-13),
9. 7032630 - Control of A/L ratios in vacuum assist vapor recovery dispensers (2006-04-25),
10. 6953496 - Sub-atmospheric fuel storage system (2005-10-11),
11. 6835223 - Fuel storage and dispensing system (2004-12-28),
12. 6810922 - Vapor recovery system with improved ORVR compatibility and performance (2004-11-02),
13. 6608484 - Diagnostic fuel storage system (2003-08-19),
14. 6360789 - Vapor recovery line diagnostics (2002-03-26),
15. 6293996 - Fuel storage system with vent filter assembly (2001-09-25),
Company Overview
Vapor Systems Technologies, Inc. is a specialized firm based in Dayton, Ohio, focusing on innovative vapor management solutions. The company develops advanced technologies aimed at optimizing vapor control and emissions reduction across various industries. With a strong emphasis on research and development, Vapor Systems Technologies is dedicated to enhancing environmental sustainability through its cutting-edge products and services. Its expertise spans multiple sectors, contributing to improved operational efficiency and compliance with environmental regulations.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Vapor Systems Technologies, Inc. USPTO Patent Assignee Logo
20 Patents

#34 in Dayton, OH

#714 in Ohio

#16,409 in US

#31,295 in the World

Dayton, OH (US)
Dayton, OH, United States of America

Vapor Systems Technologies, Inc.

Forward Citations = 330

7 inventors:

goldMedal Rodger P Grantham (20 out of 36 patents)

silverMedal Glenn K Walker (6 out of 8 patents)

bronzeMedal Ken Allen (2 out of 5 patents)

4.  Douglas Alan Harty (2 out of 2 patents)

5.  Gregg Marshel (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Vapor Systems Technologies, Inc.. Retrieved from https://idiyas.com/company/vapor-systems-technologies

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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