Trademark attorney

John M Guynn

Workman NydeggerUnited States

John M Guynn of Workman Nydegger (United States) is listed as the attorney or agent of record on 58 trademark filings, as reported by the trademark offices.

Browse filingsGet this data via the API
Filings of record
58
Still active
17
Registration rate
50%
Latest filingFirst in 1996
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 · 11 filed
2007
2022 to 2026 · filed
17
First filing
1996

Filings by year: 1996: 3, 1998: 2, 2000: 2, 2001: 2, 2007: 11, 2008: 1, 2010: 1, 2012: 1, 2013: 1, 2014: 7, 2015: 3, 2016: 1, 2017: 1, 2018: 2, 2019: 2, 2020: 1, 2022: 1, 2023: 4, 2025: 2, 2026: 10.

Filings

Latest filings of record

The most recent applications naming this attorney or agent.

Browse all filings
MarkStatusOfficeOwnerClassesFiled
SUNHYDROGENexaminingUSPTOSunhydrogen, Inc.92026-09-11
AVALON MEDICALexaminingUSPTOAvalon Medical, Inc.102026-07-09
AVALON MEDICALexaminingUSPTOAvalon Medical, Inc.102026-07-09
REGAINexaminingUSPTOAvalon Medical, Inc.5, 102026-07-08
MITRALSEALexaminingUSPTOAvalon Medical, Inc.102026-07-08
POLIPHASEexaminingUSPTOAvalon Medical, Inc.52026-07-08
PERISEALpending publicationUSPTOAvalon Medical, Inc.52026-07-08
REDIHEALexaminingUSPTOAvalon Medical, Inc.52026-07-08
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_019d1b72-aef6-7534-b02a-ee214125f201
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "att_019d1b72-aef6-7534-b02a-ee214125f201",
  "object": "attorney",
  "name": "John M Guynn",
  "firm_name": "Workman Nydegger",
  "country_code": "US",
  "trademark_count": 58
}