Trademark attorney

Mark M. Hamilton

Mark M. Hamilton of Marshall & Melhorn, LLC is listed as the attorney or agent of record on 10 trademark filings, as reported by the trademark offices.

Browse filings Get this data via the API

Data current as of September 1, 2026

Filings of record: 10
Still active: 5
Registration rate: 80%
Latest filingFirst in 1986: 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

USPTO10100%

By classA mark can cover several classes

Class 9Computers and Scientific Devices220%
Class 17Rubber Goods220%
Class 35Advertising and Business220%
Class 37Building Construction and Repair220%
Class 42Computer and Scientific Services220%
Class 14Jewelry110%
Class 16Paper Goods and Printed Matter110%
Class 36Insurance and Financial110%

+1 more

Activity

Filings per year

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

Peak year · 2 filed: 2017
2015 to 2019 · filed: 4
First filing: 1986

Filings

Latest filings of record

The most recent applications naming this attorney or agent.

Browse all filings

Mark	Status	Office	Owner	Classes	Filed
OF RUST AND GLASS	registered	USPTO	Of Rust and Glass LLC	41	2019-03-25
JPIN	cancelled	USPTO	Heath, Pansy L	14	2018-02-05
INVIZILOK	abandoned	USPTO	ACPO, Ltd.	16, 17	2017-08-03
LINDA	abandoned	USPTO	Lithium Innovations Company, LLC	9	2017-06-09
AUTISM.	cancelled	USPTO	The Great Lakes Collaborative for Autism	35, 36	2013-10-01
COHERE BRAND	registered	USPTO	Sta LLC	17	2007-11-13
AHL UNDER 10	registered	USPTO	Tom Ahl Buick, Inc.	35	2005-04-08
GLASS CONNECT	cancelled	USPTO	Pilkington North America, Inc.	9	2003-10-27

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_019d16f8-696f-76dc-bc05-0b2b05170e07
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "att_019d16f8-696f-76dc-bc05-0b2b05170e07",
  "object": "attorney",
  "name": "Mark M. Hamilton",
  "firm_name": "Marshall & Melhorn, LLC",
  "country_code": null,
  "trademark_count": 10
}