% Expired Patents = 33.3

Forward Citations = 151

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6 inventors (with patents filed for the assignee):

Rudolf W Gunnerman (8 out of 23 patents)

Charles I Richman (3 out of 3 patents)

Steve Hung-Mou Lu (1 out of 1 patent)

4. Hai Mei (1 out of 1 patent)

5. Teh Fu Yen (1 out of 16 patents)

6. Jason Michael May (1 out of 69 patents)

9 patents: Sort by Forward Citations

1. 7559241 - High-throughput continuous-flow ultrasound reactor (2009-07-14),

2. 7408290 - Power driving circuit for controlling a variable load ultrasonic transducer (2008-08-05),

3. 7300566 - Conversion of petroleum resid to usable oils with ultrasound (2007-11-27),

4. 7275440 - Loop-shaped ultrasound generator and use in reaction systems (2007-10-02),

5. 6897628 - High-power ultrasound generator and use in chemical reactions (2005-05-24),

6. 6827844 - Ultrasound-assisted desulfurization of fossil fuels in the presence of dialkyl ethers (2004-12-07),

7. 6652992 - Corrosion resistant ultrasonic horn (2003-11-25),

8. 6500219 - Continuous process for oxidative desulfurization of fossil fuels with ultrasound and products thereof (2002-12-31),

9. 6402939 - Oxidative desulfurization of fossil fuels with ultrasound (2002-06-11),

Company Overview

Sulphco, Inc. is a technology company focused on developing innovative, environmentally friendly solutions for the energy industry. Their patented technologies improve refining processes to reduce emissions and lower operating costs. Sulphco's cutting-edge products are revolutionizing the way oil and gas companies approach sulfur removal and desulfurization. With a strong commitment to sustainability and efficiency, Sulphco is a leader in the field of clean energy solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

9 Patents

#514 in Houston, TX

#2,059 in Texas

#32,588 in US

Houston, TX, United States of America

Sulphco, Inc.

Forward Citations = 151

6 inventors:

Rudolf W Gunnerman (8 out of 23 patents)

Charles I Richman (3 out of 3 patents)

Steve Hung-Mou Lu (1 out of 1 patent)

4. Hai Mei (1 out of 1 patent)

5. Teh Fu Yen (1 out of 16 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sulphco, Inc.. Retrieved from https://idiyas.com/company/sulphco

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]