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Alsip, IL, United States of America

Hydra-stop, Inc.

USPTO Granted Patents = 9

CIPO Patents = 1

Trademarks = 9

Forward Citations = 78

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13 inventors (with patents filed for the assignee):

Christopher C Vazzana (7 out of 7 patents)

Andrew J Nelson (5 out of 7 patents)

Carl Mastny (5 out of 5 patents)

4. Stephen Roehrig (2 out of 2 patents)

5. Panagiotis Tsafaras (2 out of 2 patents)

6. Kevin P Murphy (2 out of 4 patents)

7. Garland Y Smith (2 out of 7 patents)

8. Cole Strickland (1 out of 1 patent)

9. Cullen Geppert (1 out of 1 patent)

10. Ariel Choi (1 out of 1 patent)

11. Atticus D Rush (1 out of 1 patent)

12. Michael Murphy (1 out of 1 patent)

13. Michael J Redman (1 out of 1 patent)

9 patents: Sort by Forward Citations

1. 11530761 - Systems and methods for protecting a tether line disposed in a pressurized pipe (2022-12-20),

2. 11248992 - Systems and methods for accessing and monitoring a fluid within a pressurized pipe (2022-02-15),

3. 10718458 - Automated pressure equalization above and below completion plug of gate valve cartridge or a completion plug of a line stop fitting (2020-07-21),

4. 10619747 - Expanding gate valve assembly with pressure equalization system (2020-04-14),

5. 10473560 - Pipe core sampling and tapping apparatus (2019-11-12),

6. 9829141 - Linestops, nozzles and completion plugs for installation in pressurized pipes (2017-11-28),

7. 9644779 - Gate valves for installation in pressurized pipes (2017-05-09),

8. 6810903 - Conduit flow controller (2004-11-02),

9. 6125868 - Method and apparatus for maintaining valves in a water distribution (2000-10-03),

Hydra-Stop, Inc. is a leading provider of innovative solutions for the water industry. Their line of products includes the Hydra-Stop Insta-Valve equipment, which allows for safe and efficient line stopping and valve insertion. With a focus on quality and reliability, Hydra-Stop, Inc. is committed to helping water utilities improve their infrastructure and ensure the reliable delivery of clean water to communities.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

9 Patents

#8 in Alsip, IL

#1,502 in Illinois

#31,616 in US

Alsip, IL, United States of America

Hydra-stop, Inc.

Forward Citations = 78

13 inventors:

Christopher C Vazzana (7 out of 7 patents)

Andrew J Nelson (5 out of 7 patents)

Carl Mastny (5 out of 5 patents)

4. Stephen Roehrig (2 out of 2 patents)

5. Panagiotis Tsafaras (2 out of 2 patents)

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