Portfolio comparison
Bell Communications Research Inc vs Ziehm Imaging
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Bell Communications Research Inc
Patents indexed
1
Year range
1997
Most recent
1997
telecommunicationssoftwareconsumer_electronics
Top Patents1 enriched
US 5673322· 1997
How Early Mobile Devices Accessed the Internet Using Split Proxies
Activity by Decade
1990s1
Top Patents1 enriched
US 12357189· 2025
How Medical Scanners Track Surgical Tools in Real-Time
Activity by Decade
2020s1
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