Trademark attorney

Karl Klassen

Perkins Coie LLPUnited States

Karl Klassen of Perkins Coie LLP (United States) is listed as the attorney or agent of record on 38 trademark filings, as reported by the trademark offices.

Browse filingsGet this data via the API
Filings of record
38
Still active
33
Registration rate
94%
Latest filingFirst in 2006
2026
Coverage

Where these filings were made

Each mark counts once here: an international registration is grouped with its country designations, not counted once per country.

By office

By classA mark can cover several classes

+6 more

Activity

Filings per year

New filings of record each year, counting each mark once.

Peak year · 5 filed
2016
2022 to 2026 · filed
12
First filing
2006

Filings by year: 2006: 1, 2009: 1, 2012: 1, 2013: 2, 2014: 1, 2015: 4, 2016: 5, 2017: 4, 2018: 1, 2019: 2, 2020: 4, 2022: 2, 2023: 1, 2024: 5, 2025: 3, 2026: 1.

Filings

Latest filings of record

The most recent applications naming this attorney or agent.

Browse all filings
MarkStatusOfficeOwnerClassesFiled
FLEXSENSE CGMexaminingUSPTOOne Health Biosensing Inc.9, 102026-05-20
ALTITUDE BY SOLAIRUSexaminingUSPTOSunset Aviation LLC392025-11-25
SOLAIRUS AVIATIONregisteredUSPTOSunset Aviation LLC9, 35, 392025-11-25
FLEXCGMallowedUSPTOOne Health Biosensing Inc.9, 102025-10-24
BULLETPROOFexaminingUSPTOBulletproof 360, Inc.52024-12-10
BULLETPROOFregisteredUSPTOBulletproof 360, Inc.29, 302024-12-10
THE ENLIGHTENERregisteredUSPTOBulletproof 360, Inc.302024-12-10
MANTELMOUNTregisteredUSPTOManehu Product Alliance, LLC92024-08-21
API

Get this data via the API

Every number on this page comes from the Signa API. Pull the same records into your own product with one request.

  • GET/v1/attorneys/{id}

    Attorney record, firm and filing stats

  • GET/v1/attorneys/{id}/analytics

    Filings by office, class and year

  • GET/v1/attorneys/{id}/trademarks

    Every trademark the attorney is of record on

Get API keyView docs
GET /v1/attorneys/{id}
ID=att_019d228a-3626-7098-af2e-382bc869216b
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "att_019d228a-3626-7098-af2e-382bc869216b",
  "object": "attorney",
  "name": "Karl Klassen",
  "firm_name": "Perkins Coie LLP",
  "country_code": "US",
  "trademark_count": 38
}