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For the Inventor, By the Inventor

Elgin, IL, United States of America

Northgate Technologies, Inc.


USPTO Granted Patents = 61

% Expired Patents = 8.2



Trademarks = 10

Forward Citations = 1,433

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33 inventors (with patents filed for the assignee):

goldMedal Robert R Mantell (45 out of 45 patents)

silverMedal Peter A Manzie (12 out of 12 patents)

bronzeMedal Eric Andersen (8 out of 8 patents)

4.  Steven Weaver (6 out of 6 patents)

5.  Albert Nowosielski (6 out of 7 patents)

6.  Chip W Curtis (5 out of 36 patents)

7.  Charles Zander (5 out of 5 patents)

8.  Stan J Lipowski (3 out of 3 patents)

9.  Chuck Zander (3 out of 3 patents)

10.  Donald Millar (2 out of 2 patents)

11.  Patrick B Millar (2 out of 2 patents)

12.  Scott Carpenter (2 out of 6 patents)

13.  Raymond Jacobs (2 out of 2 patents)

14.  David Cho (2 out of 2 patents)

15.  Russell Kuzelka (2 out of 2 patents)


Core Competencies:
Electrohydraulic Lithotripsy
Surgical Access Device
Insufflation System
Fluid Flow Delivery
Medical Device Accessory
Laparoscopic Insertion
High-Flow Connector
Gas Recirculation
Carboxy Therapy Applicator
Irrigation System
Invasive Lithotripter
Resectoscope Electrode

61 patents:

1. 12678181 - Unfocused electrohydraulic lithotripter (2026-07-14),
2. 12514648 - Laparoscopic access device with real-time measurements (2026-01-06),
3. 12440265 - System and method to evoke smooth muscle response during surgery (2025-10-14),
4. 12350462 - Smoke suction flow regulator (2025-07-08),
5. 12272895 - Recessed D-subminiature connector assembly with flush mount cover (2025-04-08),
6. 12048445 - Unfocused electrohydraulic lithotripter (2024-07-30),
7. 11996649 - Recessed D-subminiature connector assembly with flush mount cover (2024-05-28),
8. 11957378 - Anti-microbial surgical access device (2024-04-16),
9. 11896794 - System for identifying the presence and correctness of a medical device accessory (2024-02-13),
10. 11672554 - Rounded invasive electrohydraulic lithotripsy probe with ports (2023-06-13),
11. 11583641 - Gas recirculation system and method (2023-02-21),
12. 11559319 - Unfocused electrohydraulic lithotripter (2023-01-24),
13. 11559318 - Radially-firing electrohydraulic lithotripsy probe (2023-01-24),
14. 10918813 - Carboxy therapy applicator (2021-02-16),
15. 10849637 - Rounded invasive electrohydraulic lithotripsy probe with ports (2020-12-01),
Northgate Technologies, Inc. is a leading provider of IT solutions and services. With over 20 years of experience, we specialize in custom software development, cybersecurity, cloud computing, and IT consulting. Our team of experts is dedicated to helping businesses achieve their technology goals and drive digital transformation. Visit our website to learn more about how we can help your organization succeed.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 15 2026

61 Patents

#3 in Elgin, IL

#329 in Illinois

#5,905 in US

#11,902 in the World

Elgin, IL (US)
Elgin, IL, United States of America

Northgate Technologies, Inc.

Forward Citations = 1,433

33 inventors:

goldMedal Robert R Mantell (45 out of 45 patents)

silverMedal Peter A Manzie (12 out of 12 patents)

bronzeMedal Eric Andersen (8 out of 8 patents)

4.  Steven Weaver (6 out of 6 patents)

5.  Albert Nowosielski (6 out of 7 patents)

Please report any incorrect information to [email protected]
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