Inventor · disambiguated record
Charles J. Kuehmann
Also filed as: KUEHMANN CHARLES · KUEHMANN CHARLES J
17 granted patents·5 pending applications·216 citations·filing 1999–2022
94Inventor score
Files withAPPLE INC7UNIV NORTHWESTERN7QUESTEK INNOVATIONS LLC3NORTHWESTERN UNIVERSITY BUSINE1QUES TEK INNOVATIONS LLC1
Top patents by PatentIndex Score
22 records- 0194US7160399B2Nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steelsQUESTEK INNOVATIONS LLC·Filed 2003·Granted Jan 9, 2007·28 cites·24 claims
- 0292US11028468B2Soft magnetic alloy optimized for metal injection moldingAPPLE INC·Filed 2019·Granted Jun 8, 2021·2 cites·15 claims
- 0392US7967927B2Nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steelsQUESTEK INNOVATIONS LLC·Filed 2007·Granted Jun 28, 2011·9 cites·67 claims
- 0492US7235212B2Nanocarbide precipitation strengthened ultrahigh strength, corrosion resistant, structural steels and method of making said steelsQUES TEK INNOVATIONS LLC·Filed 2002·Granted Jun 26, 2007·29 cites·23 claims
- 0591US6176946B1Advanced case carburizing secondary hardening steelsUNIV NORTHWESTERN·Filed 1999·Granted Jan 23, 2001·40 cites·3 claims
- 0690US6464801B2Advanced case carburizing secondary hardening steelsUNIV NORTHWESTERN·Filed 2001·Granted Oct 15, 2002·19 cites·48 claims
- 0789US9300036B2Radio-frequency transparent windowAPPLE INC·Filed 2013·Granted Mar 29, 2016·9 cites·14 claims
- 0888US10844464B1Niobium metal alloySPACE EXPLORATION TECH CORP·Filed 2018·Granted Nov 24, 2020·2 cites·18 claims
- 0988US9627749B2Radio-frequency transparent windowAPPLE INC·Filed 2016·Granted Apr 18, 2017·5 cites·20 claims
- 1087US6485582B1Advanced case carburizing secondary hardening steelsUNIV NORTHWESTERN·Filed 2000·Granted Nov 26, 2002·15 cites·5 claims
- 1187US6458220B1Case hardened steel blades for sports equipment and method of manufactureUNIV NORTHWESTERN·Filed 2000·Granted Oct 1, 2002·23 cites·12 claims
- 1280US6491767B1Case hardened dies for improved die lifeUNIV NORTHWESTERN·Filed 2000·Granted Dec 10, 2002·16 cites·9 claims
- 1377US10597762B2Aluminum alloys with high strength and cosmetic appealAPPLE INC·Filed 2014·Granted Mar 24, 2020·1 cites·17 claims
- 1473US6379475B1Case hardened dies for improved die lifeNORTHWESTERN UNIVERSITY BUSINE·Filed 2000·Granted Apr 30, 2002·9 cites·8 claims
- 1568US6635126B2Advanced case carburizing secondary hardening steelsUNIV NORTHWESTERN·Filed 2002·Granted Oct 21, 2003·4 cites·1 claims
- 1668US2020239990A1Aluminum Alloys with High Strength and Cosmetic AppealAPPLE INC·Filed 2020·Application pending·0 cites
- 1767US2020181746A1Aluminum alloys with high strength and cosmetic appealAPPLE INC·Filed 2020·Application pending·0 cites
- 1866US6695930B2Process for case hardened dies in improving die lifeUNIV NORTHWESTERN·Filed 2002·Granted Feb 24, 2004·5 cites·4 claims
- 1958US10427380B2Methods of manufacturing corrosion resistant bimetal parts and bimetal parts formed therefromAPPLE INC·Filed 2016·Granted Oct 1, 2019·0 cites·9 claims
- 2056US2024287664A1Ultra-hard cold-worked steel alloyTESLA INC·Filed 2022·Application pending·0 cites
- 2155US2011044843A1High-strength aluminum casting alloys resistant to hot tearingQUESTEK INNOVATIONS LLC·Filed 2009·Application pending·0 cites
- 2243US2005103408A1Nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steelsFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →