Forward Citations = 69

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10 inventors (with patents filed for the assignee):

Arthur L Clifford (6 out of 8 patents)

Derek J Rogers (5 out of 8 patents)

Dennis F Dong (4 out of 12 patents)

4. Allan James (2 out of 2 patents)

5. Edward B Noonan (2 out of 4 patents)

6. Indresh Mathur (2 out of 5 patents)

7. Richard E Loftfield (1 out of 7 patents)

8. Robert D Klassen (1 out of 1 patent)

9. David Bissett (1 out of 1 patent)

10. Katharina Benesch (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. 5316629 - Process for maintaining electrolyte flow rate through a microporous (1994-05-31),

2. 5244547 - Decreasing the concentration of hydroxyl ions in aqueous alkaline (1993-09-14),

3. 5106464 - Decreasing the concentration of hydroxyl ions in aqueous alkaline (1992-04-21),

4. 4969981 - Cell and method of operating a liquid-gas electrochemical cell (1990-11-13),

5. 4927509 - Bipolar electrolyzer (1990-05-22),

6. 4921587 - Porous diaphragm for electrochemical cell (1990-05-01),

7. 4891107 - Porous diaphragm for electrochemical cell (1990-01-02),

8. 4872957 - Electrochemical cell having dual purpose electrode (1989-10-10),

Company Overview

H-d Tech Incorporated is a leading provider of innovative technology solutions. With a focus on research and development, H-d Tech offers a wide range of products and services to improve efficiency and productivity for businesses across various industries. Our team of experts is dedicated to delivering cutting-edge solutions that help our clients stay ahead of the competition.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

8 Patents

#13 in Woodbridge

#1,878 in Canada

Woodbridge, Canada

H-D Tech Incorporated

Forward Citations = 69

10 inventors:

Arthur L Clifford (6 out of 8 patents)

Derek J Rogers (5 out of 8 patents)

Dennis F Dong (4 out of 12 patents)

4. Allan James (2 out of 2 patents)

5. Edward B Noonan (2 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: H-D Tech Incorporated. Retrieved from https://idiyas.com/company/h-d-tech

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]