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For the Inventor, By the Inventor

San Jose, CA, United States of America

Switch Bulb Company, Inc.


USPTO Granted Patents = 64

Forward Citations = 453

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34 inventors (with patents filed for the assignee):

goldMedal Ronald J Lenk (23 out of 24 patents)

silverMedal David H Titzler (18 out of 34 patents)

bronzeMedal Andrew Webb (17 out of 17 patents)

4.  David Horn (16 out of 16 patents)

5.  Jeff Salazar (16 out of 28 patents)

6.  Alex Rochat (16 out of 16 patents)

7.  Glenn Wheelock (13 out of 18 patents)

8.  Carol Lenk (9 out of 9 patents)

9.  Ronan P Le Toquin (8 out of 27 patents)

10.  Rob Swinton (6 out of 8 patents)

11.  John D Grainger (5 out of 5 patents)

12.  Stuart Kyle (4 out of 14 patents)

13.  Bernhard Stonas (4 out of 7 patents)

14.  Benjamin Kai Norman Robertson (4 out of 17 patents)

15.  Travis Andrew Lee (4 out of 4 patents)


Core Competencies:
LED Bulb
Light Distribution
Liquid-Filled Bulb
Color-Shift Dimming
Thermal Protection Circuit
Heatsink Design
Multi-Color LED Systems
Power Factor Control
Anti-Reflective Coatings
Quantum Dots
Lumen Loss Control
Contaminant Reduction

64 patents:

1. 9255673 - LED bulb having an adjustable light-distribution profile (2016-02-09),
2. 9212789 - Expandable liquid volume in an LED bulb (2015-12-15),
3. 9107273 - End-of-life bulb circuitry (2015-08-11),
4. D735901 - Frosted LED bulb (2015-08-04),
5. D734506 - LED bulb (2015-07-14),
6. 9054291 - Compression volume compensation (2015-06-09),
7. 9049761 - Power factor control for an LED bulb driver circuit (2015-06-02),
8. 9041272 - Control of lumen loss in a liquid-filled LED bulb (2015-05-26),
9. 9030118 - Single inductor control of multi-color LED systems (2015-05-12),
10. D725800 - LED bulb (2015-03-31),
11. 8981405 - Diffuser for LED light sources (2015-03-17),
12. 8947002 - LED bulb with color-shift dimming (2015-02-03),
13. 8926140 - Partitioned heatsink for improved cooling of an LED bulb (2015-01-06),
14. 8901852 - Three-level LED bulb microprocessor-based driver (2014-12-02),
15. 8853922 - Scavengers for reducing contaminants in liquid-filled LED bulbs (2014-10-07),
Switch Bulb Company, Inc. is a leading provider of innovative lighting solutions. With a focus on energy-efficient and eco-friendly products, we offer a wide range of high-quality LED bulbs for residential, commercial, and industrial applications. Our team of experts is committed to delivering superior performance, durability, and cost savings to our customers. Visit our website to explore our product offerings and experience the future of lighting.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

64 Patents

#145 in San Jose, CA

#1,285 in California

#5,446 in US

#11,029 in the World

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San Jose, CA, United States of America

Switch Bulb Company, Inc.

Forward Citations = 453

34 inventors:

goldMedal Ronald J Lenk (23 out of 24 patents)

silverMedal David H Titzler (18 out of 34 patents)

bronzeMedal Andrew Webb (17 out of 17 patents)

4.  David Horn (16 out of 16 patents)

5.  Jeff Salazar (16 out of 28 patents)

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