Inventor · disambiguated record
Ludwig R. Siegl
Also filed as: SIEGL LUDWIG R
4 granted patents·68 citations·filing 1979–1984
77Inventor score
Files withIBM4
Top patents by PatentIndex Score
4 records- 0177US4261039AMicroprocessor controlled positioning systemIBM·Filed 1979·Granted Apr 7, 1981·38 cites·30 claims
- 0254US4441077AReal time eddy current responsive Hall effect device tachometerIBM·Filed 1981·Granted Apr 3, 1984·13 cites·2 claims
- 0354US4353298APartial line turnaround for printersIBM·Filed 1979·Granted Oct 12, 1982·10 cites·16 claims
- 0445US4643601ARibbon positioning mechanismIBM·Filed 1984·Granted Feb 17, 1987·7 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →