Schweitzer Engineering Laboratories, Inc.
58 live US trademarks, filing since 1988. 1 new application filed this year.
Marks held on the register, by filing date. 2026 is year to date.
A multi-class mark counts once per class. Rank shown where the owner is in the class's top 50.
What Schweitzer Engineering Laboratories, Inc. filed most recently.
| Mark | Class | Filed | Basis | Status | Serial |
|---|---|---|---|---|---|
| MICROGRID ECONOMIC DISPATCH ENGINE | 9, 42 | Jan 21, 2026 | — | pending | 99606679 |
| E.O. SCHWEITZER MANUFACTURING | 9 | May 3, 2023 | — | published | 97918724 |
| BLUEFRAME | 9, 35, 42 | Sep 11, 2020 | — | registered Jun 28 | 90175150 |
| SYNCHROWAVE | 9 | Oct 16, 2019 | — | registered Jun 2 | 88656185 |
| LINAM | 9 | Jul 15, 2019 | — | registered Jul 25 | 88515024 |
| MICROGRID ECONOMIC DISPATCH ENGINE | 9, 42 | Aug 20, 2018 | — | cancelled Sep 4 | 88085397 |
| SEL | 9, 14, 41, 42 | Jul 26, 2018 | — | registered Mar 12 | 88054278 |
| MEGASCOPE | 9 | Apr 25, 2017 | — | registered Jun 5 | 87424106 |
| SEL ENGINEERING SERVICES | 9, 37, 42 | Mar 18, 2016 | — | registered Nov 14 | 86945281 |
| PROTECTING ENERGY MOVING AT THE SPEED OF LIGHT | 9 | Dec 2, 2015 | — | registered May 29 | 86836683 |
A filing missed by the due date enters a six-month grace period, then the registration cancels.
About Schweitzer Engineering Laboratories, Inc. trademarks.
How many trademarks does Schweitzer Engineering Laboratories, Inc. have?
58 live US trademarks as of October 23, 2026: 56 registered and 2 pending applications. 1 were filed in 2026 so far.
What does Schweitzer Engineering Laboratories, Inc. sell, according to its trademarks?
Mostly electronics & software (Class 9, 57 live marks). Also science & technology (saas) (Class 42) and jewelry & watches (Class 14).
Who owns the SEL trademark?
SEL is owned by Schweitzer Engineering Laboratories, Inc.. It was registered on February 21, 1989 (Reg. No. 1525339) and is live. The same owner holds 57 other live US marks.
When did Schweitzer Engineering Laboratories, Inc. first file a trademark?
Its oldest live US filing dates from 1988: SEL, filed January 19, 1988.
Know the morning after Schweitzer Engineering Laboratories, Inc. files.
Watch this company in Thorgate and get an alert for every new application, registration, publication and lapse, with the opposition deadline already worked out. Or monitor your own marks for conflicts with theirs.
Data: USPTO trademark bulk files, processed nightly by Thorgate. Last rebuilt October 23, 2026. Counts cover the US federal register only, not state or foreign marks. Owner names are shown as recorded by the USPTO. This page reports public-record facts and dates and is not legal advice. For the official record of any mark, follow its serial number to USPTO TSDR.