Trademark attorney

Matthew F Clapper

Attorney of Record, Ohio Bar MemberUnited States

Matthew F Clapper of Attorney of Record, Ohio Bar Member (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
51
Registration rate
94%
Latest filingFirst in 1994
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

+11 more

Activity

Filings per year

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

Peak year · 25 filed
2026
2022 to 2026 · filed
41
First filing
1994

Filings by year: 1994: 1, 1995: 1, 1996: 2, 2017: 2, 2018: 5, 2019: 4, 2020: 2, 2022: 1, 2023: 5, 2024: 1, 2025: 9, 2026: 25.

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
OVERFILL AND SPILLexaminingUSPTONothing Left Behind LLC212026-08-26
ITAD USAexaminingUSPTOEnvela Corporation39, 402026-07-29
STOP DRINKING PLASTICexaminingUSPTONothing Left Behind LLC212026-06-26
AX-HOISTexaminingUSPTOExpert Crane, Inc72026-06-26
180examiningUSPTONothing Left Behind LLC212026-06-24
HERE FOR NOW. NOT FOREVER.examiningUSPTONothing Left Behind LLC212026-06-23
GONE IN 180examiningUSPTONothing Left Behind LLC212026-06-23
DX-HOISTpending publicationUSPTOExpert Crane, Inc72026-04-27
API

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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_019d2a7d-bf2c-755c-a79d-26a7f49f5c93
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "att_019d2a7d-bf2c-755c-a79d-26a7f49f5c93",
  "object": "attorney",
  "name": "MATTHEW F CLAPPER",
  "firm_name": "Attorney of Record, Ohio Bar Member",
  "country_code": "US",
  "trademark_count": 57
}