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For the Inventor, By the Inventor

York, PA, United States of America

York International Corporation


USPTO Granted Patents = 179

% Expired Patents = 24.0



Trademarks = 15

Forward Citations = 3,915

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157 inventors (with patents filed for the assignee):

goldMedal Harold Robert Schnetzka (25 out of 57 patents)

silverMedal Frank E Wills (13 out of 22 patents)

bronzeMedal Dean K Norbeck (11 out of 27 patents)

4.  John Francis Judge (11 out of 20 patents)

5.  Gregory Keith Beaverson (11 out of 15 patents)

6.  Ronald Richard Rayburn (10 out of 10 patents)

7.  Curtis Christian Crane (8 out of 34 patents)

8.  Daniel James Arnold (8 out of 10 patents)

9.  Stephen Blake Pickle (8 out of 29 patents)

10.  Ivan Jadric (7 out of 34 patents)

11.  Jeffrey Lee Tucker (7 out of 20 patents)

12.  Gregory Ralph Harrod (7 out of 14 patents)

13.  William Fred McQuade (7 out of 21 patents)

14.  Harold R Schnetzka, Ii (7 out of 9 patents)

15.  John Terry Knight (6 out of 20 patents)


Core Competencies:
Refrigeration Control
Compressor Operation
Chiller Technology
Humidity Control
Variable Speed Drive
Dehumidification
Acoustic Noise Reduction
Economizer Circuit

179 patents:

1. 8109104 - System and method for detecting decreased performance in a refrigeration system (2012-02-07),
2. 8011197 - Apparatus to sense and control compressor operation in an HVAC system (2011-09-06),
3. 7918099 - Medium voltage starter for a chiller unit (2011-04-05),
4. 7908881 - HVAC system with powered subcooler (2011-03-22),
5. 7895852 - System and method for controlling an economizer circuit (2011-03-01),
6. 7849710 - Falling film evaporator (2010-12-14),
7. 7849698 - Method and apparatus to sense and establish operation mode for an HVAC control (2010-12-14),
8. 7845185 - Method and apparatus for dehumidification (2010-12-07),
9. 7784295 - Two-zone fuzzy logic liquid level control (2010-08-31),
10. 7770411 - System and method for using hot gas reheat for humidity control (2010-08-10),
11. 7743617 - Chiller sound reduction control system and method (2010-06-29),
12. 7726140 - System and method for using hot gas re-heat for humidity control (2010-06-01),
13. 7678434 - Thermally-enhanced HVAC constructions (2010-03-16),
14. 7661274 - System and method for capacity control in a multiple compressor chiller system (2010-02-16),
15. 7640066 - Transport of encapsulated serial data via instant messaging communication (2009-12-29),
Company Overview
York International Corporation, headquartered in York, Pennsylvania, specializes in the development and manufacturing of advanced HVAC systems. The company focuses on innovative technologies in refrigeration control, compressor operation, and chiller technology, ensuring efficient climate management solutions. York is also recognized for its expertise in humidity control, variable speed drives, dehumidification, and acoustic noise reduction, contributing to enhanced comfort and energy efficiency in various environments.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

York International Corporation USPTO Patent Assignee Logo
179 Patents

#3 in York, PA

#94 in Pennsylvania

#2,261 in US

#4,658 in the World

York, PA (US)
York, PA, United States of America

York International Corporation

Forward Citations = 3,915

157 inventors:

goldMedal Harold Robert Schnetzka (25 out of 57 patents)

silverMedal Frank E Wills (13 out of 22 patents)

bronzeMedal Dean K Norbeck (11 out of 27 patents)

4.  John Francis Judge (11 out of 20 patents)

5.  Gregory Keith Beaverson (11 out of 15 patents)

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