Inventor · disambiguated record
John E. Greivenkamp, Jr.
Also filed as: GREIVENKAMP JOHN E · GREIVENKAMP JR JOHN E · GREIVENKAMP JR JOHN EDWARD
20 granted patents·2 pending applications·859 citations·filing 1980–2019
96Inventor score
Files withEASTMAN KODAK CO8JOHNSON & JOHNSON VISION CARE8PRIMEAU BRIAN C2UNIVERSITY PATENTS INC2CANADIAN SPACE AGENCY1
Top patents by PatentIndex Score
22 records- 0197US4794550AExtended-range moire contouringEASTMAN KODAK CO·Filed 1986·Granted Dec 27, 1988·161 cites·20 claims
- 0296US7688453B2Interferometry testing of lenses, and systems and devices for sameJOHNSON & JOHNSON VISION CARE·Filed 2007·Granted Mar 30, 2010·57 cites·60 claims
- 0396US4791584ASub-nyquist interferometryEASTMAN KODAK CO·Filed 1986·Granted Dec 13, 1988·136 cites·24 claims
- 0495US4575193AOptical spatial frequency filterEASTMAN KODAK CO·Filed 1984·Granted Mar 11, 1986·117 cites·10 claims
- 0594US4987496ASystem for scanning halftoned imagesEASTMAN KODAK CO·Filed 1989·Granted Jan 22, 1991·117 cites·5 claims
- 0691US10362934B2System and method for the rapid measurement of the visual contrast sensitivity functionJOHNSON & JOHNSON VISION CARE·Filed 2016·Granted Jul 30, 2019·14 cites·3 claims
- 0789US4988886AMoire distance measurement method and apparatusEASTMAN KODAK CO·Filed 1989·Granted Jan 29, 1991·51 cites·10 claims
- 0886US5075562AMethod and apparatus for absolute Moire distance measurements using a grating printed on or attached to a surfaceEASTMAN KODAK CO·Filed 1990·Granted Dec 24, 1991·115 cites·30 claims
- 0981US8641194B2System for in vivo analysis of tear film in the human eye via phase shifting interferometryPRIMEAU BRIAN C·Filed 2011·Granted Feb 4, 2014·32 cites·18 claims
- 1077US10145757B2Measuring ophthalmic lens using a prism with phase shifting mirror and a fluid in reference armJOHNSON & JOHNSON VISION CARE·Filed 2018·Granted Dec 4, 2018·1 cites·1 claims
- 1166US10416039B2Interferometer having a reference fluid tank with a prism and a motion matching window for characterizing a contact lensJOHNSON & JOHNSON VISION CARE·Filed 2019·Granted Sep 17, 2019·0 cites·1 claims
- 1264US4460259ASingle lens rangefinder device having light emitter and detectorEASTMAN KODAK CO·Filed 1982·Granted Jul 17, 1984·19 cites·4 claims
- 1361US10288522B2Characterizing the surface of a contact lens with an immersed reference prismJOHNSON & JOHNSON VISION CARE·Filed 2018·Granted May 14, 2019·0 cites·8 claims
- 1458US11213198B2System and method for the rapid measurement of the visual contrast sensitivity functionJOHNSON & JOHNSON VISION CARE·Filed 2019·Granted Jan 4, 2022·0 cites·7 claims
- 1557US8427636B2Cuvette for ophthalmic lensPRINCE SIMON·Filed 2007·Granted Apr 23, 2013·4 cites·19 claims
- 1656US2016054195A1System and methods for measuring ophthalmic lensJOHNSON & JOHNSON VISION CARE·Filed 2015·Application pending·0 cites
- 1750US9655511B2Apparatus and method to obtain clinical ophthalmic high order optical aberrationsJOHNSON & JOHNSON VISION CARE·Filed 2015·Granted May 23, 2017·0 cites·1 claims
- 1850US4331877ATransverse tomography with optical filteringUNIVERSITY PATENTS INC·Filed 1980·Granted May 25, 1982·13 cites·37 claims
- 1941US4329588APolarization switched optical filtering for transverse tomographyUNIVERSITY PATENTS INC·Filed 1980·Granted May 11, 1982·8 cites·9 claims
- 2039US5075560AMoire distance measurements using a grating printed on or attached to a surfaceEASTMAN KODAK CO·Filed 1990·Granted Dec 24, 1991·10 cites·19 claims
- 2133US2012026506A1System for in vitro analysis of fluid dynamics on contact lenses via phase shifting interferometryPRIMEAU BRIAN C·Filed 2011·Application pending·0 cites
- 2228US6341181B1Mid-spatial frequency digital boost filterCANADIAN SPACE AGENCY·Filed 1998·Granted Jan 22, 2002·4 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →