Inventor · disambiguated record
Hendrik Adrianus Van Sprang
Also filed as: VAN SPRANG HENDRIK A · VAN SPRANG HENDRIK ADRIANUS
14 granted patents·4 pending applications·230 citations·filing 1985–2013
92Inventor score
Files withKONINKL PHILIPS ELECTRONICS NV6PHILIPS CORP6VAN SPRANG HENDRIK ADRIANUS3PANALYTICAL BV1VAN BOMMEL TIES1
Top patents by PatentIndex Score
18 records- 0189US5490003AReflective liquid crystal display device with twist angle between 50° and 68° and the polarizer at the bisectrixPHILIPS CORP·Filed 1993·Granted Feb 6, 1996·101 cites·7 claims
- 0284US6570302B1Electric lamp with light-absorbing medium and interference filmKONINKL PHILIPS ELECTRONICS NV·Filed 2000·Granted May 27, 2003·26 cites·12 claims
- 0378US8462325B2Light directionality sensorVAN BOMMEL TIES·Filed 2009·Granted Jun 11, 2013·4 cites·13 claims
- 0473US8121166B2Side-emitting LED light source for backlighting applicationsVAN SPRANG HENDRIK ADRIANUS·Filed 2008·Granted Feb 21, 2012·6 cites·10 claims
- 0570US4830469ALiquid crystalline color display cell having a phosphorescent substrate and U.V.-absorbing dichroic dyePHILIPS CORP·Filed 1988·Granted May 16, 1989·33 cites·6 claims
- 0661US5157529ADisplay device having wavelength-dependent birefringence compensationPHILIPS CORP·Filed 1991·Granted Oct 20, 1992·25 cites·33 claims
- 0756US8410504B2LED moduleVAN SPRANG HENDRIK ADRIANUS·Filed 2009·Granted Apr 2, 2013·1 cites·9 claims
- 0856US7453190B2Electric lamp with absorbing and interference mediaKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Granted Nov 18, 2008·5 cites·20 claims
- 0952US9082937B2LED moduleKONINKL PHILIPS ELECTRONICS NV·Filed 2013·Granted Jul 14, 2015·0 cites·12 claims
- 1050US6233306B1X-ray irradiation apparatus including an x-ray source provided with a capillary optical systemPHILIPS CORP·Filed 1999·Granted May 15, 2001·12 cites·8 claims
- 1150US2013200416A1Led moduleKONINKL PHILIPS ELECTRONICS NV·Filed 2013·Application pending·0 cites
- 1248US4664483ALiquid crystal display device with a hysteresisPHILIPS CORP·Filed 1985·Granted May 12, 1987·12 cites·17 claims
- 1346US8536600B2Photonic crystal LEDVERSCHUUREN MARCUS ANTONIUS·Filed 2008·Granted Sep 17, 2013·0 cites·15 claims
- 1445US2011205750A1Lighting assemblyKONINKL PHILIPS ELECTRONICS NV·Filed 2008·Application pending·0 cites
- 1544US2012076167A1Side-emitting led light source for backlighting applicationsVAN SPRANG HENDRIK ADRIANUS·Filed 2011·Application pending·0 cites
- 1641US2007075616A1Electric lampKONINKL PHILIPS ELECTRONICS NV·Filed 2004·Application pending·0 cites
- 1738US7194067B2X-ray optical systemPANALYTICAL BV·Filed 2002·Granted Mar 20, 2007·0 cites·8 claims
- 1832US4767191ADisplay cellPHILIPS CORP·Filed 1987·Granted Aug 30, 1988·5 cites·7 claims
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