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San Jose, CA, United States of America

Switch Bulb Company, Inc.

USPTO Granted Patents = 64

% Expired Patents = 70.3

Forward Citations = 462

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34 inventors (with patents filed for the assignee):

Ronald J Lenk (23 out of 24 patents)

David H Titzler (18 out of 34 patents)

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 15 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

Thermal Protection

Liquid-Filled Bulb

Color Control

Heatsink Design

Diffuser

Power Factor Control

Phosphor

Frosted LED

Anti-Reflective Coatings

Multi-Color Systems

64 patents: Sort by Forward Citations

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 innovator in LED lighting technology, headquartered in San Jose, California. The company specializes in the development and manufacturing of advanced LED bulbs, focusing on key areas such as light distribution, thermal protection, and color control. Their products incorporate sophisticated designs, including liquid-filled bulbs and efficient heatsinks, ensuring optimal performance and energy efficiency. With a commitment to enhancing lighting solutions, Switch Bulb Company continues to push the boundaries of LED technology.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

64 Patents

#158 in San Jose, CA

#1,318 in California

#5,679 in US

#11,465 in the World

San Jose, CA, United States of America

Switch Bulb Company, Inc.

Forward Citations = 462

34 inventors:

Ronald J Lenk (23 out of 24 patents)

David H Titzler (18 out of 34 patents)

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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