% Expired Patents = 14.3

EPO Patents = 1

Trademarks = 1

Forward Citations = 37

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5 inventors (with patents filed for the assignee):

George M Zimmer (7 out of 7 patents)

Michael J Kirby (3 out of 4 patents)

Jeffrey R Ervin (3 out of 3 patents)

4. Thomas H Kingman (1 out of 1 patent)

5. Djordje Nikolic (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 12638135 - Vaporizor (2026-05-26),

2. 10018305 - Heater with replaceable cartridge (2018-07-10),

3. 9523498 - Heater for liquefied petroleum gas storage tank (2016-12-20),

4. 8951041 - Heater for liquefied petroleum gas storage tank (2015-02-10),

5. 6957013 - Fluid heater (2005-10-18),

6. 6816669 - Vaporizer with capacity control valve (2004-11-09),

7. 6707987 - Electric liquefied petroleum gas vaporizer (2004-03-16),

Company Overview

Algas-SDI is a leading global manufacturer of gas equipment specializing in the design, engineering, and production of gas delivery systems, liquid gas storage and vaporization systems. With over 60 years of experience, Algas-SDI offers a wide range of products and services to customers in various industries including oil & gas, agriculture, and transportation.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

7 Patents

#272 in Seattle, WA

#928 in Washington

#39,929 in US

Seattle, WA, United States of America

Algas-Sdi International LLC

Forward Citations = 37

5 inventors:

George M Zimmer (7 out of 7 patents)

Michael J Kirby (3 out of 4 patents)

Jeffrey R Ervin (3 out of 3 patents)

4. Thomas H Kingman (1 out of 1 patent)

5. Djordje Nikolic (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Algas-Sdi International LLC. Retrieved from https://idiyas.com/company/algas-sdi-international

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]

1 patent (EPO):

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]