Trademark attorney

Neil D. Greenstein

TechMarkUnited States

Neil D. Greenstein of TechMark (United States) is listed as the attorney or agent of record on 69 trademark filings, as reported by the trademark offices.

Browse filings Get this data via the API

Data current as of October 16, 2026

Filings of record: 69
Still active: 21
Registration rate: 46%
Latest filingFirst in 1989: 2025

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

USPTO69100%

By classA mark can cover several classes

Class 9Computers and Scientific Devices1725%
Class 25Clothing1623%
Class 28Toys and Sporting Goods1319%
Class 42Computer and Scientific Services1014%
Class 41Education and Entertainment812%
Class 16Paper Goods and Printed Matter710%
Class 35Advertising and Business69%
Class 18Leather Goods57%

+11 more

Activity

Filings per year

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

Peak year · 14 filed: 1995
2021 to 2025 · filed: 9
First filing: 1989

Clients

Companies on these filings

Owners on the latest 48 filings of record that Signa links to a company record.

K-Swiss Inc.
United States
9 recent filings

25 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
AIRFRISK	allowed	USPTO	Lassen Peak, Inc.	9	2025-07-28
K-SWISS	allowed	USPTO	K-Swiss Inc.	3, 5, 8, 18, 21, 24	2025-03-30
[Design Mark]	allowed	USPTO	K-Swiss Inc.	3, 5, 8, 18, 21, 24	2025-03-30
WAVECORE	abandoned	USPTO	Airvine Scientific, Inc.	9, 42	2024-07-18
TEI	examining	USPTO	Time Equities, Inc.	37	2024-07-09
GENIE	pending opposition	USPTO	John Terzian	30, 32	2024-06-07
HH HEALING HEALTHCARE	allowed	USPTO	Freed & Associates	35	2023-02-13
VINEIQ	abandoned	USPTO	Airvine Scientific, Inc.	42	2022-11-15

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

Get API key View docs

GET /v1/attorneys/{id}

ID=att_019d179c-d4d7-7590-8646-9d0495c1d3eb
curl https://api.signa.so/v1/attorneys/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "att_019d179c-d4d7-7590-8646-9d0495c1d3eb",
  "object": "attorney",
  "name": "Neil D. Greenstein",
  "firm_name": "TechMark",
  "country_code": "US",
  "trademark_count": 69
}