US 5920821
Forward Citations
Use of cellular digital packet data (CDPD) communications to convey system identification list data to roaming cellular subscriber stations
Patents that cite US 5920821 — inventions that reference this patent as foundational prior art in their own applications. High forward citation counts indicate an influential patent.
CITED BY
179 patents
IN PATENTLENS
0
Citation network
This patent has been cited by 179 later patents. Citation detail pages are being built out in Phase 2.
Forward citation data is sourced from the USPTO patent database. Only patents indexed in PatentBrief are shown as links.