Inventor · disambiguated record
Yven Rohlfing
Also filed as: ROHLFING YVEN
12 granted patents·1 pending application·8 citations·filing 2007–2023
82Inventor score
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13 records- 0175US7544315B2Photochromic h-annellated benzo[f]chromene compoundsRODENSTOCK GMBH·Filed 2007·Granted Jun 9, 2009·3 cites·9 claims
- 0274US8933220B2Photochromic fused naphthopyrans having a benzene ring which is adjacent to the pyran oxygen and is linked to the para substituent via both meta positionsMELZIG MANFRED·Filed 2011·Granted Jan 13, 2015·2 cites·14 claims
- 0373US8013174B2Photochromic spirodihydrophenanthropyransRODENSTOCK GMBH·Filed 2008·Granted Sep 6, 2011·1 cites·9 claims
- 0471US8486312B2Photochromic naphthopyrans having a double-bridged terphenyl sub-unitMELZIG MANFRED·Filed 2009·Granted Jul 16, 2013·1 cites·20 claims
- 0562US8236716B2Photochromic benzopyrano-benzopyrans with further fusingMELZIG MANFRED·Filed 2008·Granted Aug 7, 2012·1 cites·24 claims
- 0659US2025092262A1Combination of specific annellated naphthopyrane isomersRODENSTOCK GMBH·Filed 2023·Application pending·0 cites
- 0749US11965102B2Photochromic annelated naphthopyrane systems with special substituents, for attaining rapid lightening speedsRODENSTOCK GMBH·Filed 2019·Granted Apr 23, 2024·0 cites·5 claims
- 0849US7922941B2Photochromic plastic objectRODENSTOCK GMBH·Filed 2008·Granted Apr 12, 2011·0 cites·12 claims
- 0949US7892296B2Photochromic benzopyransRODENSTOCK GMBH·Filed 2008·Granted Feb 22, 2011·0 cites·14 claims
- 1045US10077274B2UV-curing-compatible photochromic fused naphthopyransRODENSTOCK GMBH·Filed 2014·Granted Sep 18, 2018·0 cites·5 claims
- 1140US8987477B2Photochromic bis-idenofused naphthopryansWEIGAND UDO·Filed 2012·Granted Mar 24, 2015·0 cites·8 claims
- 1239US9963574B2Photochromic fluorenopyrans with defined dibenzo[B,D]pyrano fused attachmentWEIGAND UDO·Filed 2013·Granted May 8, 2018·0 cites·9 claims
- 1338US9151872B2Photochromic double-fused naphthopyransWEIGAND UDO·Filed 2012·Granted Oct 6, 2015·0 cites·11 claims
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