Every filing period on record, as reported. One column per filed period — a period with no column is a period with no filing, not a zero.
Basis · Amendments and terminations supersede the original report for the same registrant, client and period, so a revised quarter is counted once at its latest filed value. Registration-only filings carry no activity money and are excluded from these totals.
Who lobbies for them
Every outside firm that has filed on this client's behalf, by fees reported.
Robert Sean StienInterdigital, Inc.Covered position: Counsel, Congressman Lee Terry52 filingsthrough 2026
Blair L WattersInterdigital, Inc.48 filingsthrough 2026
Alex DelpizzoThorn Run PartnersCovered position: Legislative Director/Legislative Asst, Rep. Ferguson; Staff Asst, House Transportation and Infrastructure Committee39 filingsthrough 2026
Jason M RosenstockThorn Run PartnersCovered position: Legislative Counsel, Rep. Tom Lantos39 filings
The filings
The 20 most recent of 159 filings. Every figure above is built from these records.
This record groups every filed spelling of the client's name into one entity, so "MERCK & CO., INC." and "MERCK & CO INC" read as the same company. The grouping is the client's normalized name — organizations that file under genuinely different names appear separately. Handle: interdigital-inc.
Reading this · LD-2 reports a hired firm's fee and a registrant's reported expenses on separate lines and never both on one filing, so the two lists above are different quantities and are ranked separately rather than against each other. Firm names link to their own record as the firms chapter lands.
TEC
46 filings
$20.4M on those filings
Taxation/Internal Revenue Code
TAX
44 filings
$19.8M on those filings
Defense
DEF
8 filings
$810K on those filings
Note · A filing names one to several issue areas and reports a single dollar figure for the period, so the same money appears beside every issue that filing declares. The dollar column is therefore spend on filings that named this issue — it is not a split of the total, and these figures sum above it. Filing counts do not double-count.
Protecting American Innovation and Development Act of 2021
8 filingsthrough 2022
H.R. 1260111th CongressNamed in the filings; no matching bill record on file.6 filingsthrough 2010
S. 515111th CongressNamed in the filings; no matching bill record on file.6 filingsthrough 2010
H.R. 5340115th CongressSTRONGER Patents Act of 20184 filingsthrough 2018
S. 1390115th CongressSTRONGER Patents Act of 20174 filingsthrough 2018
S. 1145110th CongressPatent Reform Act of 20074 filingsthrough 2008
S. 2220118th CongressPREVAIL Act3 filingsthrough 2024
S. 3772117th CongressDefending American Courts Act3 filingsthrough 2022
H.R. 2500116th CongressNational Defense Authorization Act for Fiscal Year 20203 filingsthrough 2020
S. 1790116th CongressNational Defense Authorization Act
for Fiscal Year 20203 filingsthrough 2020
S. 2733114th CongressVenue Equity and Non-Uniformity Elimination Act of 20163 filingsthrough 2016
H.R. 5136111th CongressNamed in the filings; no matching bill record on file.3 filingsthrough 2010
H.R. 5658110th CongressDuncan Hunter National Defense Authorization Act for Fiscal Year 20093 filingsthrough 2008
How these are found · Bill references are extracted from the free-text activity description each filing writes, then matched to the Congress in session that filing year. A reference we can't match to a bill on file is still shown, unlinked — we cite what the filing said rather than guess at what it meant. Naming a bill is not a position on it: LD-2 records that a client lobbied on the bill, never which side.
through 2026
Harriet James MelvinThorn Run PartnersCovered position: Professional Staff, Rep. Charles Hatcher39 filingsthrough 2026
Stuart ChapmanThorn Run PartnersCovered position: Chief of Staff, Representative Carolyn McCarthy; Chief of Staff, Representative Zack Space; Press Secretary, Senator Jay Rockefeller; Press Secretary, Representative Barbara Lee39 filingsthrough 2026
Mark Joseph AndersonKelley Drye & Warren LLPCovered position: CoS, Rep. Lee Terry ; ; Sr. Policy Advisor, Rep. Roy Blunt ; ; L.D., Rep. Darrell Issa ; ; L.D., Rep. Lee Terry ; ; L.A., Rep. Frank Cremeans33 filingsthrough 2022
Lloyd HandLloyd Hand & Associates LLC31 filingsthrough 2016
