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Rochester, NY, United States of America

Roy L Orvis

Average Co-Inventor Count = 1.89

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 19

Roy L OrvisPhilip T Lau (1 patent)Roy L OrvisRichard L Parton (1 patent)Roy L OrvisJohn P Freeman (1 patent)Roy L OrvisThomas E Gompf (1 patent)Roy L OrvisKarl E Wiegers (1 patent)Roy L OrvisRoy L Orvis (3 patents)Philip T LauPhilip T Lau (56 patents)Richard L PartonRichard L Parton (51 patents)John P FreemanJohn P Freeman (9 patents)Thomas E GompfThomas E Gompf (7 patents)Karl E WiegersKarl E Wiegers (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Eastman-kodak Company (3 from 21,594 patents)


3 patents:

1. 4737439 - Photographic compositions and elements including internal latent image

2. 4004929 - Color corrected photographic elements

3. 3998642 - Silver halide emulsions with incorporated 4,6-difluorophenolic couplers

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as of
12/12/2025
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