Inventor · disambiguated record
Roger H. Piggin
Also filed as: PIGGIN ROGER H · PIGGIN ROGER HUGH
9 granted patents·191 citations·filing 1982–2002
87Inventor score
Files withEASTMAN KODAK CO9
Top patents by PatentIndex Score
9 records- 0194US4433048ARadiation-sensitive silver bromoiodide emulsions, photographic elements, and processes for their useEASTMAN KODAK CO·Filed 1982·Granted Feb 21, 1984·132 cites·58 claims
- 0283US5061616AProcess of preparing a tabular grain silver bromoiodide emulsionEASTMAN KODAK CO·Filed 1989·Granted Oct 29, 1991·22 cites·18 claims
- 0375US5061609AProcess of preparing a tabular grain silver bromoiodide emulsion and emulsions produced therebyEASTMAN KODAK CO·Filed 1989·Granted Oct 29, 1991·16 cites·16 claims
- 0468US5512415AHigh contrast photographic silver halide materialEASTMAN KODAK CO·Filed 1995·Granted Apr 30, 1996·7 cites·10 claims
- 0566US6573021B2High contrast photographic element containing a novel combination of nucleatorsEASTMAN KODAK CO·Filed 2002·Granted Jun 3, 2003·3 cites·20 claims
- 0664US5589318AHigh contrast photographic silver halide materialEASTMAN KODAK CO·Filed 1996·Granted Dec 31, 1996·6 cites·10 claims
- 0753US5736295APhotographic high contrast silver halide materialEASTMAN KODAK CO·Filed 1996·Granted Apr 7, 1998·3 cites·10 claims
- 0829US5985509APhotographic high contrast silver halide materialEASTMAN KODAK CO·Filed 1997·Granted Nov 16, 1999·0 cites·13 claims
- 0922US6187520B1Photographic high contrast silver halide material and method of processingEASTMAN KODAK CO·Filed 1999·Granted Feb 13, 2001·2 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →