Rosa Maria Riva

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Lecco, IT

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Patents Grantslast 30 patents

Information Patent Grant
2-(2′-hydroxyphenyl) benzotriazoles containing a 2,4-imidaz...
- Patent number 6,452,018
- Issue date Sep 17, 2002
- Great Lakes Chemical Italia S.r.l.
- Rosa Maria Riva
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-(2′-hydroxyphenyl)benzotriazoles used as U.V. stabilizers
- Patent number 6,407,254
- Issue date Jun 18, 2002
- Great Lakes Chemical (Europe) GmbH
- Rosa Maria Riva
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-(2′Hydroxyphenyl) benzotriazoles and process for their pr...
- Patent number 6,268,505
- Issue date Jul 31, 2001
- Great Lakes Chemical (Europe) GmbH
- Rosa Maria Riva
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-(2'Hydroxyphenyl) benzotriazoles and process for their preparation
- Patent number 6,121,456
- Issue date Sep 19, 2000
- Great Lakes Chemical (Europe) GmbH
- Rosa Maria Riva
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Procedure for the preparation of nitroxyl radicals of sterically hi...
- Patent number 5,218,116
- Issue date Jun 8, 1993
- Enichem Synthesis S.p.A.
- Carlo Neri
- C07 - ORGANIC CHEMISTRY