For the Inventor, By the Inventor

Enter assignee name

North Prairie, WI, United States of America

Zero Zone, Inc.

USPTO Granted Patents = 11

% Expired Patents = 18.2

CIPO Patents = 4

Trademarks = 9

Forward Citations = 74

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12 inventors (with patents filed for the assignee):

Steve Esslinger (4 out of 4 patents)

Paul J Simon (3 out of 30 patents)

Eric Gray (1 out of 1 patent)

4. Steve Searl (1 out of 1 patent)

5. David A Steele (1 out of 1 patent)

6. Robert Sparks (1 out of 1 patent)

7. Bruce R Hierlmeier (1 out of 1 patent)

8. William R Geisness (1 out of 1 patent)

9. Erik B Haffner (1 out of 1 patent)

10. Carl C Roberts (1 out of 1 patent)

11. Keith R Mickelson (1 out of 1 patent)

12. Paul Michael Hayes (1 out of 1 patent)

11 patents: Sort by Forward Citations

1. 10182666 - Frameless refrigerated case (2019-01-22),

2. 9974398 - Door closer mechanism for display case (2018-05-22),

3. 9962014 - Holder for a refrigerated case (2018-05-08),

4. 9901189 - Air duct for refrigeration case (2018-02-27),

5. 9394736 - Door closer mechanism for display case (2016-07-19),

6. 7640758 - Refrigerant tracking/leak detection system and method (2010-01-05),

7. 7475565 - Refrigeration system including a side-load sub-cooler (2009-01-13),

8. 7377118 - Refrigerant tracking/leak detection system and method (2008-05-27),

9. 7231783 - Oil control system for a refrigeration system (2007-06-19),

10. 6272876 - Display freezer having evaporator unit (2001-08-14),

11. 6240739 - Display refrigerator evaporator cover (2001-06-05),

Zero Zone, Inc. is a leading manufacturer specializing in advanced refrigeration and freezer solutions, primarily serving the commercial food service and retail sectors. The company focuses on energy-efficient systems that enhance food preservation while minimizing environmental impact. With a commitment to innovation, Zero Zone develops cutting-edge technologies in refrigeration design and engineering, ensuring high performance and reliability. Headquartered in North Prairie, Wisconsin, the company is dedicated to providing sustainable solutions tailored to meet the evolving needs of its customers.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

11 Patents

#1 in North Prairie, WI

#622 in Wisconsin

#27,490 in US

#51,714 in the World

North Prairie, WI, United States of America

Zero Zone, Inc.

Forward Citations = 74

12 inventors:

Steve Esslinger (4 out of 4 patents)

Paul J Simon (3 out of 30 patents)

Eric Gray (1 out of 1 patent)

4. Steve Searl (1 out of 1 patent)

5. David A Steele (1 out of 1 patent)

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