Inventor · disambiguated record
David Ludwig
Also filed as: LUDWIG DAVID · LUDWIG DAVID A · LUDWIG DAVID B IV
3 granted patents·2 pending applications·64 citations·filing 1981–2012
73Inventor score
Files withALLAN AIR PRODUCTS INC1Allan Air Products1HSU YING1MICROSOFT CORP1RING & PINION SALES INC1
Top patents by PatentIndex Score
5 records- 0186USD269588STool handleAllan Air Products·Filed 1981·Granted Jul 5, 1983·29 cites·1 claims
- 0262US4380270ATool deviceALLAN AIR PRODUCTS INC·Filed 1981·Granted Apr 19, 1983·21 cites·1 claims
- 0354US2006105302A1Practice session utilizing an applicationMICROSOFT CORP·Filed 2004·Application pending·0 cites
- 0447US4848939ABearing shimRING & PINION SALES INC·Filed 1984·Granted Jul 18, 1989·14 cites·7 claims
- 0538US2014293266A1Local Alignment and Positioning Device and MethodHSU YING·Filed 2012·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →