Trademark attorney

Gerard von Hoffmann

Knobbe, Martens, Olson & BearUnited States

Gerard von Hoffmann of Knobbe, Martens, Olson & Bear (United States) is listed as the attorney or agent of record on 22 trademark filings, as reported by the trademark offices.

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Data current as of May 1, 2026

Filings of record: 22
Still active: 0
Registration rate: 64%
Latest filingFirst in 1987: 1996

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

USPTO22100%

By classA mark can cover several classes

Class 9Computers and Scientific Devices941%
Class 10Medical Apparatus523%
Class 25Clothing418%
Class 7Machines and Machine Tools29%
Class 42Computer and Scientific Services29%
Class 2Paints15%
Class 40Treatment of Materials15%

Activity

Filings per year

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

Peak year · 6 filed: 1991
1992 to 1996 · filed: 9
First filing: 1987

Clients

Companies on these filings

Owners on the latest 22 filings of record that Signa links to a company record.

Oakley, Inc.
United States
4 recent filings

11 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

Mark	Status	Office	Owner	Classes	Filed
VITROSEAL	abandoned	USPTO	Dancor, Inc.	2, 40	1996-05-31
HAMMERFANGS	cancelled	USPTO	Oakley, Inc.	9	1995-07-11
GATLING	cancelled	USPTO	Gatling Optical Company Inc.	9, 25	1995-05-16
PROF. FATE	abandoned	USPTO	Professor Fate, Inc.	9	1994-10-27
BENDEREV	abandoned	USPTO	Benderev, Theodore V.	10	1992-07-10
SURE SIGNAL	cancelled	USPTO	Sentry Medical Products	10	1992-07-06
STAT-TAB	cancelled	USPTO	Sentry Medical Products	10	1992-07-06
MULTI-TAC	cancelled	USPTO	Sentry Medical Products	10	1992-07-06

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

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GET /v1/attorneys/{id}

ID=att_019d1729-1b4f-749e-9ab0-1502ed6a2ea4
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "att_019d1729-1b4f-749e-9ab0-1502ed6a2ea4",
  "object": "attorney",
  "name": "Gerard von Hoffmann",
  "firm_name": "Knobbe, Martens, Olson & Bear",
  "country_code": "US",
  "trademark_count": 22
}