% Expired Patents = 42.9

EPO Patents = 1

Forward Citations = 15

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4 inventors (with patents filed for the assignee):

Hector Joel Castaneda (7 out of 10 patents)

Jorge Ramirez (4 out of 6 patents)

Donald R Girdner, Jr (1 out of 1 patent)

4. Melissa A Tiongco (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 10281077 - Fusion welding fittings with weld bead cover (2019-05-07),

2. 10139133 - In-line heater (2018-11-27),

3. 10058802 - Filter housing with removable multi-cartridge holder (2018-08-28),

4. 9983043 - Positioning apparatus for a liquid level sensor (2018-05-29),

5. 9651276 - Heater for solvents and flammable fluids (2017-05-16),

6. 8894803 - Apparatus and method for etching the surface of a semiconductor substrate (2014-11-25),

7. 8349122 - Fusion welding fittings with weld bead cover (2013-01-08),

Company Overview

Heateflex Corporation has been a global leader in designing, developing, and manufacturing ultra-pure fluid heating products since 1974. Our innovative solutions meet the critical requirements for semiconductor, solar, medical, aerospace, and pharmaceutical industries. With a commitment to quality and reliability, Heateflex offers a wide range of heating products, including immersion heaters, inline fluid heaters, and high-purity water heaters.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

7 Patents

#12 in Arcadia, CA

#9,508 in California

#39,929 in US

Arcadia, CA, United States of America

Heateflex Corporation

Forward Citations = 15

4 inventors:

Hector Joel Castaneda (7 out of 10 patents)

Jorge Ramirez (4 out of 6 patents)

Donald R Girdner, Jr (1 out of 1 patent)

4. Melissa A Tiongco (1 out of 1 patent)

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

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]