Trademark attorney

David R. Halvorson

United States

David R. Halvorson (United States) is listed as the attorney or agent of record on 50 trademark filings, as reported by the trademark offices.

Browse filings Get this data via the API

Data current as of May 1, 2026

Filings of record: 50
Still active: 0
Registration rate: 56%
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

USPTO50100%

By classA mark can cover several classes

Class 9Computers and Scientific Devices3876%
Class 10Medical Apparatus612%
Class 12Vehicles24%
Class 28Toys and Sporting Goods12%
Class 37Building Construction and Repair12%
Class 39Transportation and Storage12%
Class 41Education and Entertainment12%
Class 42Computer and Scientific Services12%

Activity

Filings per year

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

Peak year · 17 filed: 1990
1992 to 1996 · filed: 6
First filing: 1987

Filings

Latest filings of record

The most recent applications naming this attorney or agent.

Browse all filings

Mark	Status	Office	Owner	Classes	Filed
PLANET RHYTHM	abandoned	USPTO	Airo Design, Inc.	9	1996-07-24
LENDERRATE	abandoned	USPTO	Shaul, Roland	9	1992-07-28
DENALI	cancelled	USPTO	Kubota Pacific Computer, Inc.	9	1992-07-02
LENDERQUEST	abandoned	USPTO	Shaul, Roland	9	1992-06-09
PRISMA	abandoned	USPTO	Diasonics, Inc.	10	1992-04-23
TELEPHONY	abandoned	USPTO	Be Incorporated	9	1992-04-14
SQ	abandoned	USPTO	Sequoia Semiconductor	9	1991-09-06
MPGA	abandoned	USPTO	Sequoia Semiconductor, Corporation	9	1991-09-05

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 key View docs

GET /v1/attorneys/{id}

ID=att_019d1746-1c49-7668-9a9d-30099bf4c903
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "att_019d1746-1c49-7668-9a9d-30099bf4c903",
  "object": "attorney",
  "name": "David R. Halvorson",
  "firm_name": null,
  "country_code": "US",
  "trademark_count": 50
}