Forward Citations = 407

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7 inventors (with patents filed for the assignee):

Virgil E Johnson, Jr (5 out of 8 patents)

Andrew F Conn (2 out of 6 patents)

T R Sundaram (2 out of 3 patents)

4. Daniel H Fruman (1 out of 1 patent)

5. Marshall P Tulin (1 out of 1 patent)

6. John E Santo (1 out of 1 patent)

7. William T Lindenmuth (1 out of 2 patents)

7 patents: Sort by Forward Citations

1. 4681264 - Enhancing liquid jet erosion (1987-07-21),

2. 4474251 - Enhancing liquid jet erosion (1984-10-02),

3. 4391339 - Cavitating liquid jet assisted drill bit and method for deep-hole (1983-07-05),

4. 4389071 - Enhancing liquid jet erosion (1983-06-21),

5. 4313830 - Method for increasing the cross-flow microfiltration fluxes of waste (1982-02-02),

6. 4262757 - Cavitating liquid jet assisted drill bit and method for deep-hole (1981-04-21),

7. 4022694 - Oil-water separation apparatus (1977-05-10),

Company Overview

Hydronautics, Incorporated is a leading provider of advanced underwater technology solutions for commercial, defense, and scientific applications. With a focus on designing and manufacturing cutting-edge marine robotics, sensors, and systems, Hydronautics delivers reliable and innovative solutions for underwater exploration and research. The company's expertise in underwater vehicles and equipment enables clients to achieve their goals efficiently and effectively.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#5 in Laurel, MD

#569 in Maryland

#39,907 in US

Laurel, MD, United States of America

Hydronautics, Incorporated

Forward Citations = 407

7 inventors:

Virgil E Johnson, Jr (5 out of 8 patents)

Andrew F Conn (2 out of 6 patents)

T R Sundaram (2 out of 3 patents)

4. Daniel H Fruman (1 out of 1 patent)

5. Marshall P Tulin (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hydronautics, Incorporated. Retrieved from https://idiyas.com/company/hydronautics

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]