Sunstein LLP

Trademark firm

Sunstein LLP is a trademark firm. It is the firm of record on 700 trademarks, 359 of them still active, most of them at the USPTO. 75% of its decided applications were registered.

Browse filingsGet this data via the API
Trademarks of record
700
Still active
359
Registration rate
75%
Jurisdictions
2
Coverage

Where Sunstein LLP 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

+35 more

Activity

Filings per year

New trademarks Sunstein LLP has filed each year, counting each mark once.

Peak year · 61 filed
2019
2021 to 2025 · filed
183
First filing
1964

Filings by year: 1964: 1, 1965: 1, 1970: 1, 1973: 1, 1975: 1, 1979: 1, 1983: 1, 1988: 1, 1989: 1, 1991: 1, 1992: 1, 1993: 1, 1994: 2, 1995: 2, 1996: 3, 1997: 2, 1998: 4, 1999: 6, 2000: 4, 2001: 10, 2002: 5, 2003: 5, 2004: 4, 2005: 13, 2006: 4, 2007: 10, 2008: 10, 2009: 17, 2010: 18, 2011: 14, 2012: 27, 2013: 40, 2014: 24, 2015: 34, 2016: 34, 2017: 52, 2018: 47, 2019: 61, 2020: 53, 2021: 54, 2022: 34, 2023: 33, 2024: 61, 2025: 1.

Clients

Companies Sunstein LLP files for

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

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

Filings

Latest filings

The most recent applications with Sunstein LLP as the firm of record.

Browse all filings
MarkStatusOfficeOwnerClassesFiled
HARVARDregisteredUSPTOPresident and Fellows of Harvard College92025-09-15
CHARLIEabandonedUSPTOMassachusetts Bay Transportation Authority392024-11-26
NabandonedUSPTONovoHydrogen Holdings LLC402024-10-15
NOVOHYDROGENabandonedUSPTONovoHydrogen Holdings LLC402024-10-10
DENTALOSexaminingUSPTOOverjet Inc.422024-09-06
COHERE HEALTHregisteredUSPTOCohere Health, Inc.422024-08-29
ENGENIOUSabandonedUSPTOEnsoma, Inc.422024-08-26
ENSOMAallowedUSPTOEnsoma, Inc.52024-08-26
People

Attorneys of record

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

Also on record: Joel Leeman, John W. Powell, Steve A. Abreu, London K. Lundstrum.

FAQ

About Sunstein LLP

How many trademarks has Sunstein LLP filed?

Sunstein LLP is the firm of record on 700 trademarks tracked by Signa.

What is Sunstein LLP's trademark registration rate?

75% of the decided applications Sunstein LLP handled were registered.

Where does Sunstein LLP file trademarks?

Most of Sunstein LLP's filings are at the USPTO, with 623 marks.

How long has Sunstein LLP been filing trademarks?

Signa has filings by Sunstein LLP from 1964 to 2025.

API

Get this data via the API

Every number on this page comes from the Signa API. Pull Sunstein LLP'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_e2f6f361-e27b-4669-b05b-661397a65744
curl https://api.signa.so/v1/firms/$ID/analytics \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "object": "analytics_report",
  "subject": {
    "id": "firm_e2f6f361-e27b-4669-b05b-661397a65744",
    "object": "firm",
    "name": "SUNSTEIN LLP"
  },
  "portfolio": {
    "mark_count": 700,
    "active_count": 359,
    "jurisdiction_spread": {
      "US": 623,
      "WO": 77
    }
  }
}