STUART CHEMTOB, ESQ

Registrant on federal lobbying filings · filed 2025 to 2025

$45,000 Income reported

1 Clients represented

4 Filings counted

0 Former members lobbying

Income is the fees this registrant reported being paid to lobby. 1 filing on this record was restated by a later amendment and is left out of every total here. Everything on this page is grouped by the registrant's LDA id (401108262), not by name.

Clients 1

INTERDIGITAL COMMUNICATIONS $45,000 4 filings

Lobbyists named 1

STUART CHEMTOB 3 filings · through 2025 Principal

A lobbyist who previously held a covered government position must disclose it. We flag the ones whose name resolves to a member of Congress and link the ones still in our roster. The revolving door collects them across every firm.

Reported by year 1 year

2025 $45,000 4 filings

Issues lobbied 4

The count is how many filings named that issue area. A filing reports one lump figure covering every issue on it, so the money above cannot be split between them.

Agencies and chambers lobbied 4

HOUSE OF REPRESENTATIVES 3
Natl Institute of Standards & Technology (NIST) 3
Patent & Trademark Office (PTO) 3
SENATE 3

Recent filings 5 total

4TY

INTERDIGITAL COMMUNICATIONS

4th Quarter (Oct 1 - Dec 31) 2025 · posted Jan 1, 2026

View → 4TY

INTERDIGITAL COMMUNICATIONS Amended

4th Quarter (Oct 1 - Dec 31) 2025 · posted Jan 1, 2026

View → Q3

INTERDIGITAL COMMUNICATIONS

3rd Quarter (July 1 - Sep 30) 2025 · House · Senate · $15,000 income · posted Oct 2, 2025

View → Q2

INTERDIGITAL COMMUNICATIONS

2nd Quarter (Apr 1 - June 30) 2025 · House · Senate · $15,000 income · posted Jul 3, 2025

View → Q1

INTERDIGITAL COMMUNICATIONS

1st Quarter (Jan 1 - Mar 31) 2025 · House · Senate · $15,000 income · posted Apr 6, 2025

View →

Source: federal Lobbying Disclosure Act filings, synced daily. Money is self-reported by the filer and often rounded. Lobbying is legal, disclosed activity.