Trademark attorney

Eric W. Hagen

Eric W. Hagen of DLA Piper LLP (US) (United States) is listed as the attorney or agent of record on 45 trademark filings, as reported by the trademark offices.

Browse filings Get this data via the API

Data current as of July 31, 2026

Filings of record: 45
Still active: 1
Registration rate: 67%
Latest filingFirst in 2002: 2019

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

USPTO45100%

By classA mark can cover several classes

Class 5Pharmaceuticals1227%
Class 9Computers and Scientific Devices1022%
Class 41Education and Entertainment613%
Class 10Medical Apparatus511%
Class 3Cosmetics and Cleaning Preparations49%
Class 45Legal and Personal49%
Class 25Clothing37%
Class 35Advertising and Business37%

+8 more

Activity

Filings per year

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

Peak year · 8 filed: 2012
2015 to 2019 · filed: 3
First filing: 2002

Filings

Latest filings of record

The most recent applications naming this attorney or agent.

Browse all filings

Mark	Status	Office	Owner	Classes	Filed
PNEUMA NITRIC OXIDE	abandoned	USPTO	Pneuma Nitric Oxide, LLC	5	2019-03-26
AUSPER	abandoned	USPTO	Causper Medical Inc.	10	2016-08-11
GOMOJI	abandoned	USPTO	JibJab Media Inc.	9	2016-06-29
APTISENS	abandoned	USPTO	CleanGrow, Ltd.	42	2014-08-08
L.A. TURBINE THE TURBOEXPANDER COMPANY	cancelled	USPTO	L.A. Turbine	7, 37, 42	2014-06-09
BYONXX	abandoned	USPTO	Carbylan Therapeutics, Inc.	10	2014-02-04
BYONXX	abandoned	USPTO	Carbylan Therapeutics, Inc.	5	2014-02-04
BIONXX	abandoned	USPTO	Carbylan Therapeutics, Inc.	5	2014-02-04

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_019d1ed2-d46b-76c9-b969-bf6369f5fef7
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "att_019d1ed2-d46b-76c9-b969-bf6369f5fef7",
  "object": "attorney",
  "name": "Eric W. Hagen",
  "firm_name": "DLA Piper LLP (US)",
  "country_code": "US",
  "trademark_count": 45
}