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For the Inventor, By the Inventor

East Moline, IL, United States of America

H.c. Duke & Son, LLC

USPTO Granted Patents = 9


Forward Citations = 51

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16 inventors (with patents filed for the assignee):

goldMedal Kyle B Elsom (7 out of 7 patents)

silverMedal James A Quandt (4 out of 4 patents)

bronzeMedal Dustin Meyermann (3 out of 3 patents)

4.  Mark L Davis (2 out of 2 patents)

5.  Gary Paul Almblade (2 out of 2 patents)

6.  Joshua Otto (2 out of 2 patents)

7.  Brian Mathews (1 out of 7 patents)

8.  Lex Greenway (1 out of 1 patent)

9.  Greg Smart (1 out of 4 patents)

10.  Jim Quandt (1 out of 1 patent)

11.  Alexis Grabill (1 out of 1 patent)

12.  Sean A McKay (1 out of 1 patent)

13.  Daniel G Duke (1 out of 1 patent)

14.  Kenneth J Emody (1 out of 1 patent)

15.  Ji Won Elizabeth Oh (1 out of 1 patent)


9 patents:

1. 12727605 - Inverter motor drive for frozen confection machine and process for controlling a frozen confection machine (2026-09-08),
2. 12029224 - Automated clean in place system for soft serve machine (2024-07-09),
3. 12004532 - Inverter motor drive for frozen confection machine and process for controlling a frozen confection machine (2024-06-11),
4. 10834940 - Integrated motor drive system for soft serve dispenser (2020-11-17),
5. 10306906 - Chilled food product dispenser and method with adaptive control of refrigeration system (2019-06-04),
6. 9980504 - Inner door system for soft serve machine (2018-05-29),
7. 9723858 - Frozen confection dispensing apparatus (2017-08-08),
8. 8496141 - Frozen confection machine having simultaneous dispensing of two flavors with clog inhibiting mechanism (2013-07-30),
9. 5349825 - System and method for dispensing a confectionery product using a (1994-09-27),
Company Overview
H.c. Duke & Son, LLC is a leading provider of packaging equipment and systems for the food industry. With over 100 years of experience, they offer innovative solutions for weighing, filling, and bagging applications. Their products are known for their high-quality construction and reliability, making them the trusted choice for food manufacturers worldwide.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

9 Patents

#1 in East Moline, IL

#1,549 in Illinois

#32,605 in US

East Moline, IL (US)
East Moline, IL, United States of America

H.c. Duke & Son, LLC

Forward Citations = 51

16 inventors:

goldMedal Kyle B Elsom (7 out of 7 patents)

silverMedal James A Quandt (4 out of 4 patents)

bronzeMedal Dustin Meyermann (3 out of 3 patents)

4.  Mark L Davis (2 out of 2 patents)

5.  Gary Paul Almblade (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: H.c. Duke & Son, LLC. Retrieved from https://idiyas.com/company/h-c-duke-and-son

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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