Inventor · disambiguated record
Johan E. A. Hartman
Also filed as: HARTMAN JOHAN E A
2 granted patents·9 citations·filing 1983–1984
54Inventor score
Files withPHILIPS CORP2
Top patents by PatentIndex Score
2 records- 0134US4545050AMethod of and arrangement for establishing a conference connection in a TDM communication systemPHILIPS CORP·Filed 1983·Granted Oct 1, 1985·5 cites·11 claims
- 0231US4606057AArrangement for checking the counting function of countersPHILIPS CORP·Filed 1984·Granted Aug 12, 1986·4 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →