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For the Inventor, By the Inventor

Worcester, MA, United States of America

Riley Stoker Corporation

Calculating rank
USPTO Granted Patents = 14

Trademarks = 3

Forward Citations = 194

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13 inventors (with patents filed for the assignee):

goldMedal Craig A Penterson (3 out of 28 patents)

silverMedal Oliver G Briggs (2 out of 11 patents)

bronzeMedal Stanley J Piekos (2 out of 2 patents)

4.  David R Geoffroy (2 out of 2 patents)

5.  Donald S Langille (2 out of 2 patents)

6.  Daniel C Itse (2 out of 2 patents)

7.  Albert H Rawdon (2 out of 2 patents)

8.  Vijay B Dixit (1 out of 1 patent)

9.  Francis G Ouellette (1 out of 1 patent)

10.  Ronald W Breault (1 out of 1 patent)

11.  John W Larson (1 out of 2 patents)

12.  Gerald S Gielda (1 out of 1 patent)

13.  E James Coulthard (1 out of 1 patent)


14 patents:

1. 5417564 - Method and apparatus for altering the firing pattern of an existing (1995-05-23),
2. 5392720 - Flame retaining nozzle tip (1995-02-28),
3. 5161471 - Apparatus for reburning ash material of a previously burned primary fuel (1992-11-10),
4. 5143486 - Flow promoter for fluidized solids (1992-09-01),
5. 5141047 - Fluidized bed heat exchanger (1992-08-25),
6. 5123480 - Integrated heat exchanger (1992-06-23),
7. 4756360 - Fluidized bed heat exchanger (1988-07-12),
8. 4745884 - Fluidized bed steam generating system (1988-05-24),
9. 4744311 - System for feeding solid particulate material for combustion in a (1988-05-17),
10. 4709663 - Flow control device for solid particulate material (1987-12-01),
11. 4709662 - Fluidized bed heat generator and method of operation (1987-12-01),
12. 4517904 - Furnace, burner and method for burning pulverized coal (1985-05-21),
13. 4479442 - Venturi burner nozzle for pulverized coal (1984-10-30),
14. 4457241 - Method of burning pulverized coal (1984-07-03),
Company Overview
Riley Stoker Corporation, based in Worcester, MA, specializes in the design and manufacturing of advanced combustion systems and equipment for industrial applications. The company focuses on providing innovative solutions for energy generation, including boiler systems and related technologies. With a commitment to enhancing efficiency and sustainability, Riley Stoker plays a significant role in the energy sector, serving a diverse range of clients across various industries. Their expertise in combustion technology positions them as a key player in the market.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

14 Patents

#23 in Worcester, MA

#1,364 in Massachusetts

#22,344 in US

#42,312 in the World

Worcester, MA (US)
Worcester, MA, United States of America

Riley Stoker Corporation

Forward Citations = 194

13 inventors:

goldMedal Craig A Penterson (3 out of 28 patents)

silverMedal Oliver G Briggs (2 out of 11 patents)

bronzeMedal Stanley J Piekos (2 out of 2 patents)

4.  David R Geoffroy (2 out of 2 patents)

5.  Donald S Langille (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Riley Stoker Corporation. Retrieved from https://idiyas.com/company/riley-stoker

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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