Inventor · disambiguated record
Daniel Nathan Karpen
Also filed as: KARPEN DANIEL N · KARPEN DANIEL NATHAN
8 granted patents·232 citations·filing 1991–2001
89Inventor score
Files withKARPEN DANIEL N2
Top patents by PatentIndex Score
8 records- 0190US6450652B1Neodymium oxide doped motor vehicle windshield and safety glazing materialFiled 2001·Granted Sep 17, 2002·47 cites·27 claims
- 0276US5184881ADevice for full spectrum polarized lighting systemKARPEN DANIEL N·Filed 1991·Granted Feb 9, 1993·41 cites·5 claims
- 0375US5961208AColor corrected high intensity discharge motor vehicle headlightFiled 1998·Granted Oct 5, 1999·31 cites·26 claims
- 0474US5548491AColor corrected motor vehicle headlightFiled 1995·Granted Aug 20, 1996·31 cites·13 claims
- 0573US6416867B1Reduced glare neodymium oxide containing window glassFiled 2000·Granted Jul 9, 2002·33 cites·8 claims
- 0657US6933677B1Magnetically shielded flourescent lamp ballast caseFiled 1998·Granted Aug 23, 2005·21 cites·13 claims
- 0749US5844721AMotor vehicle rearview mirrorFiled 1997·Granted Dec 1, 1998·15 cites·1 claims
- 0844US5359498AUltraviolet transmitting multi-layer polarizerKARPEN DANIEL N·Filed 1992·Granted Oct 25, 1994·13 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →