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USPTO Data Jan 1 1976 - Oct 20 2026
758 Patents
#1 in Pullman, WA
#10 in Washington
#665 in US
#1,314 in the World
Schweitzer Engineering Laboratories, Inc.
Forward Citations = 6,100
452 inventors:
Pullman, WA, United States of America
Schweitzer Engineering Laboratories, Inc.
% Expired Patents = 9.6
CIPO Patents = 4
EPO Patents = 5
Trademarks = 55
Forward Citations = 6,100
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452 inventors (with patents filed for the assignee):
Edmund O Schweitzer, Iii (123 out of 127 patents)
David E Whitehead (66 out of 66 patents)
Armando Guzman-Casillas (59 out of 60 patents)
4. Bogdan Zdzislaw Kasztenny (53 out of 71 patents)
5. Normann Fischer (42 out of 42 patents)
6. Tony J Lee (40 out of 41 patents)
7. Veselin Skendzic (38 out of 48 patents)
8. Gregary C Zweigle (36 out of 36 patents)
9. Scott M Manson (33 out of 33 patents)
10. Mangapathirao Venkata Mynam (30 out of 30 patents)
11. Shankar V Achanta (29 out of 29 patents)
12. Rhett Smith (29 out of 30 patents)
13. Marcos A Donolo (28 out of 28 patents)
14. Krishnanjan Gubba Ravikumar (27 out of 39 patents)
15. Colin Gordon (27 out of 27 patents)
Core Competencies:
Network Time Synchronization
Multi-Channel Protection
Current Sensor
Voltage Regulator
Fault Location
Cybersecurity
Microgrid Stability
Electric Power Distribution
Relay Protection
Signal Monitoring
Communication Links
Power System Management
758 patents:
3. 12756226 - Electric power system control with packet stream redundancy and correction (2026-10-06),
4. 12749892 - Asynchronous distributed control design using tiered automation algorithms (2026-09-29),
10. 12683374 - Testing system for distributed power delivery protection or control system (2026-07-14),
Company Overview
Schweitzer Engineering Laboratories, Inc. (SEL) is a leading provider of innovative solutions for electric power systems, headquartered in Pullman, Washington. The company specializes in developing advanced technologies for network time synchronization, multi-channel protection, current sensors, and voltage regulation. SEL's expertise extends to fault location, cybersecurity, microgrid stability, and electric power distribution, contributing to the reliability and efficiency of power systems globally. Its commitment to research and development positions SEL at the forefront of the electric utility industry.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Schweitzer Engineering Laboratories, Inc.. Retrieved from https://idiyas.com/company/schweitzer-engineering-laboratories
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
4 patents (CIPO):
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
5 patents (EPO):
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]