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For the Inventor, By the Inventor

Oak Brook, IL, United States of America

Restaurant Technology Inc.


USPTO Granted Patents = 173

% Expired Patents = 37.6



Trademarks = 14

Forward Citations = 3,953

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219 inventors (with patents filed for the assignee):

goldMedal Henry Thomas Ewald (37 out of 42 patents)

silverMedal Gerald A Sus (27 out of 27 patents)

bronzeMedal Glenn Schackmuth (22 out of 29 patents)

4.  Ron Dorsten (18 out of 18 patents)

5.  Paul G Simmons (16 out of 16 patents)

6.  Jenny M Hong (13 out of 13 patents)

7.  Curtis Clarence Pinnow (12 out of 21 patents)

8.  Manuel Calzada (11 out of 13 patents)

9.  Mario G Ceste (11 out of 16 patents)

10.  David W Carroll (10 out of 66 patents)

11.  Robert L Cahlander (10 out of 12 patents)

12.  Benny Nunley (9 out of 9 patents)

13.  Charles E Rose (9 out of 9 patents)

14.  Jimmie L Coffey (9 out of 10 patents)

15.  Richard J Petersheim (9 out of 12 patents)


Core Competencies:
Automated Cooking Systems
Food Holding Devices
Drive-Thru Order Management
Programmable Food Storage
Temperature Controlled Systems
Vibratory Tray Conveyor
Low Oil Volume Fryer
Food Packaging Solutions
Grill Automation
Food Staging Devices
RFID Inventory Management
Granular Material Dispenser

173 patents:

1. 12453988 - System and method to clean a range exhaust (2025-10-28),
2. 12358033 - System and method to clean a range exhaust (2025-07-15),
3. 11897004 - System and method to clean a range exhaust (2024-02-13),
4. 11434068 - Flame resistant filter apparatus and method (2022-09-06),
5. 11097937 - Structural food preparation systems and methods (2021-08-24),
6. 10932618 - Two-surface grill with adjustable gap and multi-stage method for cooking food (2021-03-02),
7. 10640357 - Structural food preparation systems and methods (2020-05-05),
8. 10373223 - System and method for receiving and managing remotely placed orders (2019-08-06),
9. RE47380 - Drive-thru system and method (2019-05-06),
10. 9700173 - Two-surface grill with adjustable gap and multi-stage method for cooking food (2017-07-11),
11. 9232875 - Low oil volume fryer with small cold zone (2016-01-12),
12. 9198450 - Table top bun steamer and method (2015-12-01),
13. 9084429 - Food tray and tray insert (2015-07-21),
14. 9049875 - Steam and platen toasting device (2015-06-09),
15. 8997636 - Programmable device and method for storing food (2015-04-07),
Restaurant Technology Inc., based in Oak Brook, IL, specializes in innovative solutions for the food service industry. The company focuses on developing advanced automated cooking systems and food holding devices that enhance operational efficiency and food quality. Their expertise extends to drive-thru order management, programmable food storage, and temperature-controlled systems, catering to the evolving needs of modern restaurants. Additionally, they offer unique solutions like vibratory tray conveyors and low oil volume fryers, ensuring optimal food preparation and packaging.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

173 Patents

#3 in Oak Brook, IL

#141 in Illinois

#2,317 in US

#4,784 in the World

Oak Brook, IL (US)
Oak Brook, IL, United States of America

Restaurant Technology Inc.

Forward Citations = 3,953

219 inventors:

goldMedal Henry Thomas Ewald (37 out of 42 patents)

silverMedal Gerald A Sus (27 out of 27 patents)

bronzeMedal Glenn Schackmuth (22 out of 29 patents)

4.  Ron Dorsten (18 out of 18 patents)

5.  Paul G Simmons (16 out of 16 patents)

Please report any incorrect information to [email protected]
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