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For the Inventor, By the Inventor

Wilmington, DE, United States of America

Ranco Inc. of Delaware


USPTO Granted Patents = 90


Trademarks = 13

Forward Citations = 2,378

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96 inventors (with patents filed for the assignee):

goldMedal Nicholas Ashworth (6 out of 15 patents)

silverMedal John Gilman Chapman, Jr (6 out of 15 patents)

bronzeMedal Thomas W Parker (6 out of 17 patents)

4.  Gregory A Ehlers (5 out of 9 patents)

5.  William D Kramer (5 out of 8 patents)

6.  Allan McLane (5 out of 5 patents)

7.  William Peter Tanguay (5 out of 17 patents)

8.  Timothy D Kaiser (4 out of 6 patents)

9.  Charles D Grant (4 out of 4 patents)

10.  Phillip Ryan Wagner (3 out of 12 patents)

11.  Geoff Mulligan (3 out of 7 patents)

12.  Robert R Norris (3 out of 3 patents)

13.  Ronald S Joyce (3 out of 13 patents)

14.  David J Kwiatek (3 out of 13 patents)

15.  Robert J Alvord (3 out of 18 patents)


Core Competencies:
Demand Limiting
Resistive Load Management
Thermostatic Controller
Color Changing Technology
Automotive Coolant Control
Air Quality Treatment
Firmware Upgrade Security
Fluid Temperature Control
Smoke Alarm Technologies
Valve Control Systems
Remote Sensor Monitoring
Electromechanical Programmers

90 patents:

1. 8014905 - System and method for demand limiting resistive load management (2011-09-06),
2. 7940675 - Method of communication between reduced functionality devices in an IEEE 802.15.4 network (2011-05-10),
3. 7940674 - Method of communication between reduced functionality devices in an IEEE 802.15.4 network (2011-05-10),
4. 7913925 - Color changing thermostatic controller (2011-03-29),
5. 7874444 - Thermostatic controller with decorative faceplate (2011-01-25),
6. 7667163 - Thermostat with adjustable color for aesthetics and readability (2010-02-23),
7. 7624931 - Adjustable display resolution for thermostat (2009-12-01),
8. 7544291 - Water purification system utilizing a plurality of ultraviolet light emitting diodes (2009-06-09),
9. D592982 - Thermostat (2009-05-26),
10. 7522063 - Combination thermostat and warning device with remote sensor monitoring (2009-04-21),
11. 7506664 - Automotive coolant control valve (2009-03-24),
12. 7486631 - Method of communication between reduced functionality devices in an IEEE 802.15.4 network (2009-02-03),
13. 7460933 - Thermostat display system providing adjustable backlight and indicators (2008-12-02),
14. 7455240 - Thermostat display system providing animated icons (2008-11-25),
15. 7423544 - Method of selecting operation in a line-powered module (2008-09-09),
Ranco Inc. is a leading technology company based in Delaware. With a strong focus on innovation and customer satisfaction, Ranco has been delivering cutting-edge solutions since 2005. Specializing in software development, Ranco offers a comprehensive range of services including application development, web development, and mobile app development. Through a talented team of experienced professionals, Ranco ensures the highest quality standards in every project. With a commitment to excellence, Ranco continues to serve clients across various industries, helping them realize their digital transformation goals.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 6 2026

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90 Patents

#61 in Wilmington, DE

#79 in Delaware

#4,007 in US

#8,291 in the World

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Wilmington, DE, United States of America

Ranco Inc. of Delaware

Forward Citations = 2,378

96 inventors:

goldMedal Nicholas Ashworth (6 out of 15 patents)

silverMedal John Gilman Chapman, Jr (6 out of 15 patents)

bronzeMedal Thomas W Parker (6 out of 17 patents)

4.  Gregory A Ehlers (5 out of 9 patents)

5.  William D Kramer (5 out of 8 patents)

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