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For the Inventor, By the Inventor

Madison, WI, United States of America

Sub-Zero Freezer Company, Inc.

Calculating rank
USPTO Granted Patents = 10

Trademarks = 1

Forward Citations = 451

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9 inventors (with patents filed for the assignee):

goldMedal Jerome Carmel Caruso (5 out of 38 patents)

silverMedal Philip F Hottmann (5 out of 19 patents)

bronzeMedal Mark J Blahnik (2 out of 8 patents)

4.  Allen L Wilkins (2 out of 2 patents)

5.  Jeffrey J Pagel (1 out of 1 patent)

6.  Chris R Rieger (1 out of 1 patent)

7.  David L Bein (1 out of 1 patent)

8.  John J Jaschinski (1 out of 1 patent)

9.  David L Bien (1 out of 1 patent)


10 patents:

1. 6722142 - Refrigerated enclosure (2004-04-20),
2. 5641217 - Slide shelf system for a deli/crisper drawer (1997-06-24),
3. 5497534 - Double arm hinge for a refrigerator door (1996-03-12),
4. 5287252 - Adjustable illuminated refrigerator shelf (1994-02-15),
5. 5211462 - Double door refrigerator with ice service through the refrigerator door (1993-05-18),
6. 5119639 - Ice level sensor (1992-06-09),
7. 5040856 - Comestible storage compartment for refrigeration unit (1991-08-20),
8. 5027473 - Refrigerator door closer (1991-07-02),
9. 4955569 - Refrigerator leveling system (1990-09-11),
10. 4867512 - Adjustable storage module (1989-09-19),
Company Overview
Sub-Zero Freezer Company, Inc. is a prominent manufacturer specializing in high-end refrigeration and freezer solutions. Based in Madison, Wisconsin, the company is renowned for its commitment to quality and innovation in the luxury appliance market. Sub-Zero focuses on developing advanced technologies that enhance food preservation, ensuring optimal freshness and flavor. Their product line includes built-in and integrated refrigeration systems, catering to both residential and commercial needs, while emphasizing energy efficiency and design aesthetics.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

10 Patents

#68 in Madison, WI

#668 in Wisconsin

#29,892 in US

#56,119 in the World

Madison, WI (US)
Madison, WI, United States of America

Sub-Zero Freezer Company, Inc.

Forward Citations = 451

9 inventors:

goldMedal Jerome Carmel Caruso (5 out of 38 patents)

silverMedal Philip F Hottmann (5 out of 19 patents)

bronzeMedal Mark J Blahnik (2 out of 8 patents)

4.  Allen L Wilkins (2 out of 2 patents)

5.  Jeffrey J Pagel (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sub-Zero Freezer Company, Inc.. Retrieved from https://idiyas.com/company/sub-zero-freezer-company

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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