Trademark attorney

Karen L Casser

Karen L Casser of Arnold & Porter (United States) is listed as the attorney or agent of record on 14 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: 14
Still active: 0
Registration rate: 43%
Latest filingFirst in 1996: 1998

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

USPTO14100%

By classA mark can cover several classes

Class 41Education and Entertainment750%
Class 9Computers and Scientific Devices429%
Class 42Computer and Scientific Services321%
Class 16Paper Goods and Printed Matter17%
Class 21Housewares and Glass17%
Class 25Clothing17%
Class 35Advertising and Business17%

Activity

Filings per year

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

Peak year · 8 filed: 1996
1994 to 1998 · filed: 14
First filing: 1996

Filings

Latest filings of record

The most recent applications naming this attorney or agent.

Browse all filings

Mark	Status	Office	Owner	Classes	Filed
MBURST	cancelled	USPTO	Mburst, Inc.	41, 42	1998-06-25
VIRTUALFAN	cancelled	USPTO	DataNaut Incorporated	41, 42	1997-03-19
GEMSTONE	abandoned	USPTO	Simutronics Corporation	41	1997-01-31
GEMSTONE III	cancelled	USPTO	Simutronics Corporation	21, 25	1997-01-31
GEMSTONE III	abandoned	USPTO	Simutronics Corporation	41	1997-01-31
GEMSTONE III	cancelled	USPTO	Simutronics Corporation	41	1997-01-31
WE MAKE CHANGE STICK	abandoned	USPTO	Synthesis Group International, Ltd.	9, 16	1996-12-16
SIMUTRONICS	abandoned	USPTO	Simutronics Corporation	35	1996-12-02

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_019d1b99-78a1-741d-866b-1844f65b95dd
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "att_019d1b99-78a1-741d-866b-1844f65b95dd",
  "object": "attorney",
  "name": "Karen L Casser",
  "firm_name": "Arnold & Porter",
  "country_code": "US",
  "trademark_count": 14
}