Arnold & Porter

Trademark firm

Arnold & Porter is a trademark firm. It is the firm of record on 1,205 trademarks, 252 of them still active, most of them at the USPTO. 54% of its decided applications were registered.

Browse filingsGet this data via the API
Trademarks of record
1,205
Still active
252
Registration rate
54%
Jurisdictions
1
Coverage

Where Arnold & Porter files

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

+33 more

Activity

Filings per year

New trademarks Arnold & Porter has filed each year, counting each mark once.

Peak year · 92 filed
2000
2022 to 2026 · filed
150
First filing
1911

Filings by year: 1911: 9, 1942: 1, 1953: 1, 1959: 9, 1962: 3, 1963: 1, 1964: 2, 1969: 1, 1972: 1, 1978: 13, 1979: 8, 1980: 7, 1981: 10, 1982: 27, 1983: 13, 1985: 15, 1986: 8, 1987: 3, 1988: 3, 1989: 11, 1990: 30, 1991: 32, 1992: 41, 1993: 53, 1994: 59, 1995: 70, 1996: 85, 1997: 78, 1998: 69, 1999: 75, 2000: 92, 2001: 72, 2002: 25, 2003: 16, 2004: 9, 2005: 5, 2006: 5, 2007: 4, 2008: 6, 2009: 5, 2010: 7, 2011: 5, 2012: 4, 2013: 8, 2014: 7, 2015: 15, 2016: 4, 2017: 8, 2018: 7, 2019: 3, 2020: 5, 2021: 5, 2022: 12, 2023: 8, 2024: 34, 2025: 50, 2026: 46.

Clients

Companies Arnold & Porter files for

Owners on the firm's latest 48 filings that Signa links to a company record.

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

Filings

Latest filings

The most recent applications with Arnold & Porter as the firm of record.

Browse all filings
MarkStatusOfficeOwnerClassesFiled
FLEXBRACKETexaminingUSPTOHohmann & Barnard, Inc.62026-09-17
EZCLADexaminingUSPTOHohmann & Barnard, Inc.62026-09-17
ADS DIRECT PRINTexaminingUSPTOAcumed, LLC402026-08-28
ACUMED DIRECT PRINTexaminingUSPTOAcumed, LLC402026-08-28
NYBONDexaminingUSPTONylok LLC1, 62026-07-27
WILBERTexaminingUSPTOWilbert Funeral Services, Inc.35, 452026-07-15
ACU-READYexaminingUSPTOAcumed, LLC9, 10, 442026-07-13
ACU-READY SOLUTIONSexaminingUSPTOAcumed, LLC9, 10, 442026-07-01
People

Attorneys of record

Named attorneys and agents on the firm's filings, as reported by the offices.

Also on record: Philip W. Horton, John A. Siliciano, Denise R. Madigan, Abby S. Cherner, Joycelyn G. Bolling, Brian Ribblett, Susan B. Chertkof, Marcia Cranberg, Brian D. Ribblett, Blake A. Biles, Denise Madigan, Sheila M. Nix, Sharone F. Cannon, Michael C. Sandifer, Robert Horton, L Elizabeth Bowles, Charles D Ossola.

Showing part of the firm's roster.

FAQ

About Arnold & Porter

How many trademarks has Arnold & Porter filed?

Arnold & Porter is the firm of record on 1,205 trademarks tracked by Signa.

What is Arnold & Porter's trademark registration rate?

54% of the decided applications Arnold & Porter handled were registered.

Where does Arnold & Porter file trademarks?

Most of Arnold & Porter's filings are at the USPTO, with 1,205 marks.

How long has Arnold & Porter been filing trademarks?

Signa has filings by Arnold & Porter from 1911 to 2026.

API

Get this data via the API

Every number on this page comes from the Signa API. Pull Arnold & Porter's filings into your own product with one request.

  • GET/v1/firms/{id}/analytics

    Portfolio by office, class and year, plus disputes

  • GET/v1/firms/{id}

    Firm record, registration rate and attorney count

  • GET/v1/firms/{id}/trademarks

    Every trademark the firm is of record on

Get API keyView docs
GET /v1/firms/{id}/analytics
ID=firm_547db1b7-4ec6-4713-b9ad-19d18a846d0c
curl https://api.signa.so/v1/firms/$ID/analytics \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "object": "analytics_report",
  "subject": {
    "id": "firm_547db1b7-4ec6-4713-b9ad-19d18a846d0c",
    "object": "firm",
    "name": "ARNOLD & PORTER"
  },
  "portfolio": {
    "mark_count": 1205,
    "active_count": 252,
    "jurisdiction_spread": {
      "US": 1205
    }
  }
}