Sergio Massirio — 7 Patents at 3M

Sergio Massirio has been granted 7 US patents while listed as an inventor at 3M. The first was granted in 1993 and the most recent in April 2000. Sergio Massirio ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Sergio Massirio in Savona, IT.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6045985	Light-sensitive silver halide photographic elements containing yellow filter dyes	Piero Cavalleri	2000-04-04
6043011	Silver halide color photographic element having improved bleachability	Isabella Cogliolo, Paolo Beretta, Ivano Delprato	2000-03-28
5821042	Silver halide color photographic element having improved bleachability	Massimo Bertoldi, Giovanni Giusto, Emilio Prosperi, Roberto Sardelli	1998-10-13	$5,948,000
5770354	Silver halide photographic elements having improved sensitivity	Raffaella Biavasco, Flavio Costa	1998-06-23	$6,703,000
5529892	Hardened silver halide photographic elements	Giovanni Giusto, Domenico Marinelli	1996-06-25	$10,612,000
5441858	Photographic silver halide elements comprising infrared sensitizing dyes	Ivano Delprato, Massimo Bertoldi	1995-08-15	$13,472,000
5248838	Process for preparing bisphenol fluorene compounds	Mauro Besio, Marcello Gagliano, Brunella Fornasari, Angelo Vallarino, Piera Di Mito	1993-09-28	$11,665,000

Sergio Massirio — 7 Patents

Issued Patents All Time

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