For the Inventor, By the Inventor

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Sacramento, CA, United States of America

Electro Scan, Inc.

USPTO Granted Patents = 19

CIPO Patents = 12

EPO Patents = 3

Forward Citations = 364

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29 inventors (with patents filed for the assignee):

Charles A Hansen (8 out of 8 patents)

Gerasimos D Danilatos (6 out of 6 patents)

Mark J Grabowski (4 out of 4 patents)

4. Sean T Blottie (2 out of 2 patents)

5. Cory T Peters (2 out of 2 patents)

6. Sonja M Hansen (2 out of 2 patents)

7. Bianca C Hansen (2 out of 2 patents)

8. Robert Jackson Harris (2 out of 3 patents)

9. James F Mancuso (2 out of 4 patents)

10. George C Lewis (2 out of 9 patents)

11. W Ralph Knowles (2 out of 6 patents)

12. William B Maxwell (2 out of 2 patents)

13. Matthew Campos (2 out of 2 patents)

14. Thomas VanBergen (2 out of 2 patents)

15. Janine Mullinix (2 out of 2 patents)

19 patents: Sort by Forward Citations

1. 12385865 - Lead detection system for underground pipes (2025-08-12),

2. 12105040 - Lead detection system for underground pipes (2024-10-01),

3. 10816431 - Leak detection system for underground access chambers using conductivity (2020-10-27),

4. 10557772 - Multi-sensor inspection for identification of pressurized pipe defects that leak (2020-02-11),

5. 10451515 - Electric field expansion system for low voltage conductivity inspection (2019-10-22),

6. 9933329 - Multi-sensor inspection for identification of pressurized pipe defects that leak (2018-04-03),

7. 9304055 - System and method for identification of pipe defects that leak (2016-04-05),

8. 9143740 - Electro-scan integration into video pipe inspection vehicle (2015-09-22),

9. 5412211 - Environmental scanning electron microscope (1995-05-02),

10. 5362964 - Environmental scanning electron microscope (1994-11-08),

11. 5250808 - Integrated electron optical/differential pumping/imaging signal system (1993-10-05),

12. 5173776 - Apparatus and method for improving the signal-to-noise ratio of video (1992-12-22),

13. 4992662 - Multipurpose gaseous detector device for electron microscope (1991-02-12),

14. 4897545 - Electron detector for use in a gaseous environment (1990-01-30),

15. 4880976 - Secondary electron detector for use in a gaseous atmosphere (1989-11-14),

Electro Scan, Inc. is a global leader in pipe condition assessment with its patented technology that accurately identifies sources of infiltration and exfiltration in sewers. Their electrode scanning technology provides instant and objective results, allowing utilities to make more informed decisions on rehabilitation projects. With over 30 years of experience, Electro Scan is trusted by municipalities and engineering firms worldwide to ensure the integrity of their underground infrastructure.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

19 Patents

#14 in Sacramento, CA

#3,964 in California

#16,592 in US

#31,670 in the World

Sacramento, CA, United States of America

Electro Scan, Inc.

Forward Citations = 364

29 inventors:

Charles A Hansen (8 out of 8 patents)

Gerasimos D Danilatos (6 out of 6 patents)

Mark J Grabowski (4 out of 4 patents)

4. Sean T Blottie (2 out of 2 patents)

5. Cory T Peters (2 out of 2 patents)

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