Trademark attorney

Brian Chellgren

Dentons Bingham Greenebaum LLPUnited States

Brian Chellgren of Dentons Bingham Greenebaum LLP (United States) is listed as the attorney or agent of record on 63 trademark filings, as reported by the trademark offices.

Browse filingsGet this data via the API
Filings of record
63
Still active
56
Registration rate
84%
Latest filingFirst in 2019
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

+17 more

Activity

Filings per year

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

Peak year · 34 filed
2025
2022 to 2026 · filed
61
First filing
2019

Filings by year: 2019: 2, 2024: 7, 2025: 34, 2026: 20.

Clients

Companies on these filings

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

19 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
SHUFFLEFACEexaminingUSPTOShuffleface LLC282026-10-02
LUMEXUSexaminingUSPTOSafeevac, Inc.9, 37, 38, 42, 452026-09-08
CGEexaminingUSPTOCzech Games Edition s.r.o.252026-08-31
[Design Mark]examiningUSPTOCzech Games Editions s.r.o.282026-08-31
[Design Mark]examiningUSPTOCzech Games Edition s.r.o.282026-08-25
[Design Mark]examiningUSPTOCzech Games Edition s.r.o.282026-08-25
DRAGON KINGSexaminingUSPTOTimothy B. Brown282026-08-25
DRILLERSpending publicationUSPTOCzech Games Edition s.r.o.282026-08-12
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_019d29d5-bf46-727d-bb46-adaee920c71c
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "att_019d29d5-bf46-727d-bb46-adaee920c71c",
  "object": "attorney",
  "name": "Brian Chellgren",
  "firm_name": "Dentons Bingham Greenebaum LLP",
  "country_code": "US",
  "trademark_count": 63
}