Inventor · disambiguated record
Charles Armstrong
Also filed as: ARMSTRONG CHARLES · ARMSTRONG CHARLES J
3 granted patents·2,655 citations·filing 1984–1992
78Inventor score
Top patents by PatentIndex Score
3 records- 0196US5330502ARotational endoscopic mechanism with jointed drive mechanismETHICON INC·Filed 1992·Granted Jul 19, 1994·2.6k cites·15 claims
- 0238US5114213AHigh pressure water assisted mining and tunnelling machineSASOL MINING PROPRIETARY LIMIT·Filed 1991·Granted May 19, 1992·17 cites·12 claims
- 0333US4593769ARotary rock drilling chuckBOART INT LTD·Filed 1984·Granted Jun 10, 1986·5 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →