# INTERDIGITAL INC. — DEF 14A

INTERDIGITAL INC. of KING OF PRUSSIA, PA filed a DEF 14A with the SEC on 1999-04-30. Industry: Patent Owners & Lessors.

## Filing

- Filed: 1999-04-30
- Form: DEF 14A
- Accession: 0000950115-99-000643
- Registrant: INTERDIGITAL INC.
- CIK: 0000354913
- Industry (SIC): Patent Owners & Lessors (6794)
- State of incorporation: PA
- Location: KING OF PRUSSIA, PA

## Filing timeline for this registrant (22)

_Showing 12 of 22 filings._

| Filed | Form |
| --- | --- |
| [2007-04-30](https://search.stillhousedata.com/proxy/0001193125-07-096281) | DEF 14A |
| [2006-04-24](https://search.stillhousedata.com/proxy/0001193125-06-086745) | DEF 14A |
| [2005-05-05](https://search.stillhousedata.com/proxy/0001193125-05-096392) | DEFA14A |
| [2005-05-05](https://search.stillhousedata.com/proxy/0001193125-05-096384) | DEFA14A |
| [2005-04-27](https://search.stillhousedata.com/proxy/0001193125-05-086621) | DEF 14A |
| [2004-04-29](https://search.stillhousedata.com/proxy/0001193125-04-074154) | DEFR14A |
| [2004-04-28](https://search.stillhousedata.com/proxy/0001193125-04-072145) | DEFR14A |
| [2004-04-23](https://search.stillhousedata.com/proxy/0001193125-04-068502) | DEF 14A |
| [2003-05-21](https://search.stillhousedata.com/proxy/0001021408-03-008118) | DEFA14A |
| [2003-04-28](https://search.stillhousedata.com/proxy/0001021408-03-006669) | DEF 14A |
| [2002-04-29](https://search.stillhousedata.com/proxy/0000950116-02-000868) | DEF 14A |
| [2001-05-01](https://search.stillhousedata.com/proxy/0000950116-01-500101) | DEFA14A |

## More

- [CIK 354913 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=354913&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0000950115-99-000643.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.