Minneapolis, MN, United States of America

Johnstech International Corporation


USPTO Granted Patents = 114

% Expired Patents = 19.3


Trademarks = 19

Forward Citations = 794

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55 inventors (with patents filed for the assignee):

goldMedal Jeffrey C Sherry (36 out of 36 patents)

silverMedal David A Johnson (29 out of 32 patents)

bronzeMedal John E Nelson (26 out of 26 patents)

4.  Michael W Andres (18 out of 18 patents)

5.  Gary William Michalko (15 out of 16 patents)

6.  Valts Treibergs (14 out of 14 patents)

7.  Brian Warwick (13 out of 14 patents)

8.  Sarosh M Patel (10 out of 14 patents)

9.  Mike W Andres (9 out of 9 patents)

10.  Russell F Oberg (8 out of 10 patents)

11.  Brian Halvorson (7 out of 7 patents)

12.  Patrick J Alladio (7 out of 8 patents)

13.  Joel N Erdman (7 out of 10 patents)

14.  Eric V Kline (7 out of 7 patents)

15.  Melissa Hasskamp (7 out of 7 patents)


Core Competencies:
Integrated Circuit
Spring Probe
Kelvin Testing
Test Pin
Compliant Ground Block
Microcircuit Tester
Contact Assembly
Waveguide Testing
Electrically Conductive Pins
High Isolation Contactor
Wafer Level Probes
Contact Pin

114 patents:

Company Overview
Johnstech International Corporation, based in Minneapolis, MN, specializes in advanced solutions for integrated circuit testing. The company focuses on developing high-performance test equipment and technologies, including spring probes and compliant ground blocks, which are essential for accurate and reliable microcircuit testing. Their expertise extends to Kelvin testing and waveguide testing, ensuring precision in contact assembly and test pin applications. Johnstech is committed to innovation in the semiconductor industry, providing critical tools for enhancing testing efficiency and effectiveness.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Johnstech International Corporation USPTO Patent Assignee Logo
114 Patents

#20 in Minneapolis, MN

#83 in Minnesota

#3,370 in US

#6,950 in the World

Minneapolis, MN (US)
Minneapolis, MN, United States of America
Forward Citations = 794

55 inventors:

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Johnstech International Corporation. Retrieved from https://idiyas.com/company/johnstech-international

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]
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