Trademark attorney

Guy W. Barcelona, Jr.

Mayer Brown LLPUnited States

Guy W. Barcelona, Jr. of Mayer Brown LLP (United States) is listed as the attorney or agent of record on 156 trademark filings, as reported by the trademark offices.

Browse filingsGet this data via the API
Filings of record
156
Still active
35
Registration rate
38%
Latest filingFirst in 1990
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

  • Class 35Advertising and Business5233%
  • Class 9Computers and Scientific Devices3422%
  • Class 42Computer and Scientific Services2818%
  • Class 36Insurance and Financial2415%
  • Class 41Education and Entertainment2013%
  • Class 7Machines and Machine Tools1510%
  • Class 37Building Construction and Repair128%
  • Class 39Transportation and Storage128%

+23 more

Activity

Filings per year

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

Peak year · 64 filed
2013
2022 to 2026 · filed
18
First filing
1990

Filings by year: 1990: 1, 2003: 1, 2006: 1, 2007: 2, 2008: 1, 2011: 2, 2012: 17, 2013: 64, 2014: 34, 2016: 1, 2017: 7, 2018: 3, 2020: 3, 2021: 1, 2022: 2, 2023: 2, 2024: 8, 2025: 3, 2026: 3.

Clients

Companies on these filings

Owners on the latest 48 filings of record that Signa links to a company record.

16 more owners in these filings are not linked to a company record.

Filings

Latest filings of record

The most recent applications naming this attorney or agent.

Browse all filings
MarkStatusOfficeOwnerClassesFiled
STEADY TRUSTexaminingUSPTOCanadian Imperial Bank of Commerce362026-05-11
CIBC SMARTCASH+allowedUSPTOCanadian Imperial Bank of Commerce362026-01-30
CIBC SMARTCASH+ CONNECTallowedUSPTOCanadian Imperial Bank of Commerce362026-01-30
Q E I QUANTUM EI TECHNOLOGY SEZCallowedUSPTOQuantum EI Technology SEZC9, 422025-10-01
CIBC GLOBAL ASSET MANAGEMENTallowedUSPTOCanadian Imperial Bank of Commerce362025-09-25
POWERSOLUTIONS GROUP LLC.registeredUSPTOSunbelt Solomon Services, LLC37, 422025-01-23
TRATTOSAregisteredUSPTOTransportes de Trailers Toluca, S.A. de C.V.392024-10-11
TRANSPORTES DE TRAILERS TOLUCA, S.A. DE C.V.registeredUSPTOTransportes de Trailers Toluca, S.A. de C.V.392024-10-11
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_019d1810-1345-77ae-9b5a-e2f76f5e8d29
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "att_019d1810-1345-77ae-9b5a-e2f76f5e8d29",
  "object": "attorney",
  "name": "Guy W. Barcelona, Jr.",
  "firm_name": "Mayer Brown LLP",
  "country_code": "US",
  "trademark_count": 156
}