Inventor · disambiguated record
Charles D. Helmholdt
Also filed as: HELMHOLDT CHARLES D
6 granted patents·144 citations·filing 1980–1986
85Inventor score
Technology areasA47B
Top patents by PatentIndex Score
6 records- 0194USD276576SChairHAWORTH MFG INC·Filed 1980·Granted Dec 4, 1984·50 cites·1 claims
- 0290USD276575SChairHAWORTH MFG INC·Filed 1980·Granted Dec 4, 1984·33 cites·1 claims
- 0389USD277143SChairHAWORTH MFG INC·Filed 1980·Granted Jan 15, 1985·29 cites·1 claims
- 0464USD295478SReconfigurable shelf unitHELMHOLDT DIANE E·Filed 1985·Granted May 3, 1988·13 cites·1 claims
- 0551USD276481SChairHAWORTH MFG INC·Filed 1980·Granted Nov 27, 1984·5 cites·1 claims
- 0640US4746021AWindow shelf assemblyHELMHOLDT DIANE E·Filed 1986·Granted May 24, 1988·14 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →