DF

David Freestone

BL British Telecommunications Public Limited: 1 patents #627 of 1,458Top 45%
Overall (All Time): #2,252,224 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5943657 Communications pricing and charging maintenance sub-system and process Anthony Heritage, Brian S. Kerr, Timothy Regan, Paul H. Thompson, Clazien D Wezeman +1 more 1999-08-24
5058257 Tool for inserting and removing pin for bucket tooth Thomas W. Borter 1991-10-22