% Expired Patents = 20.0

CIPO Patents = 1

Forward Citations = 94

Loading Chart...

6 inventors (with patents filed for the assignee):

Kelly R Hefelfinger (2 out of 2 patents)

Nathanial Roth (2 out of 2 patents)

Zhijiang Guo (2 out of 2 patents)

4. Robert Pendergrass (2 out of 6 patents)

5. Scott Bretvick (1 out of 1 patent)

6. Gerald L Edwards (1 out of 7 patents)

7. Kelly R Hefelfinger (0 patent)

5 patents: Sort by Forward Citations

1. 11333684 - Clamp sensor systems and methods (2022-05-17),

2. 10570937 - Clamp sensor systems and methods (2020-02-25),

3. 9500684 - Line-mounted electrical energy measurement device with integrated voltage pickup and clamp (2016-11-22),

4. 8233301 - Impedance dropping dc power supply having an impedance controlled converter (2012-07-31),

5. 5057769 - AC current sensor (1991-10-15),

Sensorlink Corporation is a leading provider of sensor solutions for various industries. With a focus on innovation and quality, we specialize in developing cutting-edge sensor technologies to improve efficiency, safety, and performance for our customers. Our team of experts is dedicated to delivering reliable and accurate sensor solutions that meet the unique needs of each client.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

5 Patents

#10 in Ferndale, WA

#1,239 in Washington

#51,570 in US

Ferndale, WA, United States of America

Sensorlink Corporation