Inventor · disambiguated record
Heinz Spahni
Also filed as: SPAHNI HEINZ
13 granted patents·4 pending applications·153 citations·filing 1990–2005
92Inventor score
Top patents by PatentIndex Score
17 records- 0187US5407885APhotochromic naphthacenequinones, process for their preparation and the use thereofCIBA GEIGY CORP·Filed 1993·Granted Apr 18, 1995·25 cites·10 claims
- 0284US5208354APhotochromic naphthacenequinones, process for their preparation and the use thereofCIBA GEIGY CORP·Filed 1991·Granted May 4, 1993·21 cites·9 claims
- 0378US5206395APhotochromic naphthacenequinones, process for their preparation and the use thereofCIBA GEIGY CORP·Filed 1992·Granted Apr 27, 1993·15 cites·7 claims
- 0477US5177227APhotochromic naphthacenequinones, process for their preparation and the use thereofCIBA GEIGY CORP·Filed 1991·Granted Jan 5, 1993·29 cites·12 claims
- 0570US7034148B2Metallocenyl phthalocyanines as optical recording mediaCIBA SC HOLDING AG·Filed 2002·Granted Apr 25, 2006·7 cites·10 claims
- 0669US6849315B2Fast-writable and precision-writable high-capacity optical storage mediaCIBA SC HOLDING AG·Filed 2002·Granted Feb 1, 2005·7 cites·22 claims
- 0766US6245403B1Writable and erasable high-density optical storage mediaCIBA SC HOLDING AG·Filed 1998·Granted Jun 12, 2001·10 cites·30 claims
- 0866US5177218APhotochromic benzothioxanthone oxides, process for their preparation and the use thereofCIBA GEIGY CORP·Filed 1991·Granted Jan 5, 1993·16 cites·12 claims
- 0958US5641879APhthalocyanines substituted by phosphorus-containing groupsCIBA GEIGY CORP·Filed 1995·Granted Jun 24, 1997·8 cites·25 claims
- 1050US7378221B2Metallocenyl phthalocyanines as optical recording mediaCIBA SC HOLDING AG·Filed 2005·Granted May 27, 2008·0 cites·21 claims
- 1143US5116674AComposite structureCIBA GEIGY CORP·Filed 1990·Granted May 26, 1992·10 cites·15 claims
- 1242US5300663APhotochromic naphthacenequinones, process for their preparation and the use thereofCIBA GEIGY CORP·Filed 1993·Granted Apr 5, 1994·5 cites·1 claims
- 1342US2007172624A1Optical recording materials writable using blue lasersWOLLEB HEINZ·Filed 2005·Application pending·0 cites
- 1439US2007042152A1High-capacity optical storage mediaADAM JEAN-MARIE·Filed 2004·Application pending·0 cites
- 1538US2005008974A1Writable high-capacity optical storage media containing metal complexesFiled 2002·Application pending·0 cites
- 1637US2008130474A1Optical Recording Materials Having High Stroage DensitySCHMIDHALTER BEAT·Filed 2004·Application pending·0 cites
- 1730US5225525APhotochromic benzothioxanthone oxides, process for their preparation and the use thereofCIBA GEIGY CORP·Filed 1992·Granted Jul 6, 1993·0 cites·10 claims
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