For the Inventor, By the Inventor

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Milwaukee, WI, United States of America

Venturedyne, Ltd.

USPTO Granted Patents = 68

% Expired Patents = 2.9

EPO Patents = 11

Trademarks = 15

Forward Citations = 872

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65 inventors (with patents filed for the assignee):

David L Chandler (13 out of 13 patents)

Clinton A Peterson (11 out of 11 patents)

Peter A Liken (8 out of 14 patents)

4. Gerhard Kreikebaum (8 out of 8 patents)

5. Joseph D Wetzel (6 out of 6 patents)

6. Glenn W Bitner (6 out of 6 patents)

7. Richard L Walker (6 out of 8 patents)

8. Andrew R Veldt (5 out of 5 patents)

9. Kevin D Ewing (5 out of 5 patents)

10. Mark W Briggs (5 out of 6 patents)

11. William T Barrett (5 out of 10 patents)

12. Robert K Hayes (4 out of 4 patents)

13. Nicholas C Neander (3 out of 3 patents)

14. Glenn Y Kozuma (3 out of 3 patents)

15. Darin E Immink (3 out of 3 patents)

Core Competencies:

Environmental Sensor

Vibration Testing

Particle Counting

Thermal Cycling

Cascade Refrigeration

Dust Collector

Microbial Sampler

Test Chamber

Filter Engagement

Magnetic Separator

HVAC Systems

Cytogenetic Chamber

68 patents: Sort by Forward Citations

1. 12714992 - Carousel assembly for universal access port (2026-08-25),

2. 10557472 - Environmental sensor and method of operating the same (2020-02-11),

3. 10094755 - Environmental sensor and method of operating the same (2018-10-09),

4. 9983596 - Environmental sensor and method of operating the same (2018-05-29),

5. 9857285 - Environmental sensor and method of operating the same (2018-01-02),

6. 9377375 - Repetitive shock vibration testing system and method (2016-06-28),

7. 8875528 - Test chamber with temperature and humidity control (2014-11-04),

8. 8166773 - Refrigeration capacity banking for thermal cycling (2012-05-01),

9. RE43121 - Cascade refrigeration system (2012-01-23),

10. 7918908 - Dust collector with equalized cleaning performance (2011-04-05),

11. 7918907 - Cleaning nozzle for dust collector (2011-04-05),

12. 7895000 - Environmental sensor, particle counting system having an environmental sensor, and methods of operating the same (2011-02-22),

13. 7861594 - Apparatus and method for vibratory testing (2011-01-04),

14. 7784349 - Vibrator table frame (2010-08-31),

15. 7752930 - Microbial gaseous-fluid sampler and method of operating the same (2010-07-13),

VentureDyne, Ltd. is a leading technology investment firm specializing in early-stage and growth-stage companies. With a focus on disruptive technologies, VentureDyne seeks to maximize the potential of emerging industries. Our experienced team of investors, entrepreneurs, and technologists provide strategic guidance and capital to propel innovative startups forward. Visit our website to learn more about our portfolio companies and investment approach.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

68 Patents

#32 in Milwaukee, WI

#130 in Wisconsin

#5,364 in US

#10,868 in the World

Milwaukee, WI, United States of America

Venturedyne, Ltd.

Forward Citations = 872

65 inventors:

David L Chandler (13 out of 13 patents)

Clinton A Peterson (11 out of 11 patents)

Peter A Liken (8 out of 14 patents)

4. Gerhard Kreikebaum (8 out of 8 patents)

5. Joseph D Wetzel (6 out of 6 patents)

Please report any incorrect information to [email protected]

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