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For the Inventor, By the Inventor

Winston-Salem, NC, United States of America

C Change Surgical LLC


USPTO Granted Patents = 25



Forward Citations = 397

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6 inventors (with patents filed for the assignee):

goldMedal Patrick Kammer (25 out of 26 patents)

silverMedal Kevin Joseph Rackers (19 out of 29 patents)

bronzeMedal Todd Cassidy (10 out of 13 patents)

4.  Mark Martel (10 out of 12 patents)

5.  Philip Morrison Allred, Iii (3 out of 13 patents)

6.  Benjamin A Perrot (3 out of 4 patents)

7.  Philip Morrison Allred (0 patent)


Core Competencies:
Surgical Slush
Liquid Warming Device
Sterile Sleeve
Basin Detection
Anti-Fogging Apparatus
Container Formation
Receptacle Oscillation
Complex Rotational Motion
Well-Mixed Slush
Heated Fluid Units
Hospital Basin
Heating Element

25 patents:

1. 11819451 - Injectable slush feed supply (2023-11-21),
2. 10575984 - Sterile sleeve for use in the production of surgical slush (2020-03-03),
3. 10231866 - Producing sterile surgical slush using complex rotational motion (2019-03-19),
4. 9693892 - Method of producing slush for surgical use through receptacle oscillation (2017-07-04),
5. 9561895 - Use of sterile sleeve in production of surgical slush (2017-02-07),
6. 9549843 - Production of well-mixed surgical slush (2017-01-24),
7. D765836 - Container for formation of surgical slush (2016-09-06),
8. D765835 - Container for formation of surgical slush (2016-09-06),
9. 9326667 - Anti-fogging and cleaning apparatus for medical scopes (2016-05-03),
10. 8523082 - Open access sleeve for heated fluid units (2013-09-03),
11. 8309891 - Adapter for use with a liquid warming device (2012-11-13),
12. 8308074 - Open access sleeve for heated fluid units (2012-11-13),
13. 8138454 - Liquid warming device with basin detection (2012-03-20),
14. 7903957 - Methods using a draped liquid warming device (2011-03-08),
15. 7874167 - Method and apparatus for producing slush for surgical use (2011-01-25),
Company Overview
C Change Surgical LLC, based in Winston-Salem, NC, specializes in innovative medical devices aimed at enhancing surgical procedures. The company focuses on developing advanced technologies that improve patient outcomes and streamline surgical workflows. With a commitment to research and development, C Change Surgical is dedicated to addressing the evolving needs of healthcare professionals and patients alike, contributing to the advancement of surgical techniques and patient care in the medical field.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

C Change Surgical LLC USPTO Patent Assignee Logo
25 Patents

#13 in Winston-Salem, NC

#311 in North Carolina

#13,350 in US

#25,681 in the World

Winston-Salem, NC (US)
Winston-Salem, NC, United States of America

C Change Surgical LLC

Forward Citations = 397

6 inventors:

goldMedal Patrick Kammer (25 out of 26 patents)

silverMedal Kevin Joseph Rackers (19 out of 29 patents)

bronzeMedal Todd Cassidy (10 out of 13 patents)

4.  Mark Martel (10 out of 12 patents)

5.  Philip Morrison Allred, Iii (3 out of 13 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: C Change Surgical LLC. Retrieved from https://idiyas.com/company/c-change-surgical

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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