Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Raphael L. Levien — 32 Patents

Google: 8 patents #3,283 of 22,993Top 15%
Berkeley, CA: #137 of 3,731 inventorsTop 4%
California: #15,919 of 386,348 inventorsTop 5%
Overall (All Time): #110,428 of 4,157,543Top 3%
32 Patents All Time
Raphael L. Levien has been granted 32 US patents while listed as an inventor at Google. The first was granted in 1985 and the most recent in October 2018. Raphael L. Levien ranks #110,428 of 4,157,543 US inventors in our database (top 2.7%). Patent records list Raphael L. Levien in Berkeley, CA, US.

Issued Patents All Time

Showing 1–25 of 32 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10095674 Maintaining state of document concurrently edited by two computing systems by determining locations of edits based on inverse transformations 2018-10-09 $29,422,000
9575896 Fast, dynamic cache packing Chet Haase, Romain P. Guy 2017-02-21 $17,465,000
9563634 System and method of compressing data in font files David Kuettel 2017-02-07 $14,197,000
9275018 Techniques for analyzing web pages to determine font subsets David Kuettel, Brian Stell 2016-03-01 $14,576,000
9230350 Method and apparatus for interactive curve generation 2016-01-05
9098524 System and method of font compression using selectable entropy encoding David Kuettel 2015-08-04 $15,163,000
9075816 System and method of compressing data in font files David Kuettel 2015-07-07 $11,187,000
8843455 System and method of font compression using selectable entropy encoding David Kuettel 2014-09-23 $21,195,000
8810579 Method and apparatus for interactive curve generation 2014-08-19
8520003 Method and apparatus for interactive curve generation 2013-08-27
8510531 Fast, dynamic cache packing Chet Haase, Romain P. Guy 2013-08-13 $18,867,000
RE37907 Photographic image reproduction device using digital halftoning to screen images allowing adjustable coarseness 2002-11-19
6097855 Method and apparatus for image rotation 2000-08-01
5991513 Method and apparatus for suppressing moire patterns 1999-11-23
5917614 Method and apparatus for error diffusion screening of images with improved smoothness in highlight and shadow regions 1999-06-29
5544258 Automatic tone correction of images using non-linear histogram processing 1996-08-06
5524162 Method and apparatus for adaptive sharpening of images 1996-06-04
5442461 Screen generation for halftone screening of images with reduction of irrational correction artifacts 1995-08-15
5402726 Register mark 1995-04-04
5404137 High speed transition signalling communication system 1995-04-04
5388517 Method and apparatus for automatic alignment of objects and register mark for use therewith 1995-02-14
5365602 Integrated half-tone screening and enlarging using an enlargement mapping pattern having linked, unique pattern segments 1994-11-15
5337264 Time reversal gaussian approximation filter 1994-08-09
5331429 Digital generation of halftone images with error diffusion and frequency matched periodic screen rulings 1994-07-19
5315406 Screen generation for halftone screening of images using arbitrary distribution of transformed screen coordinates 1994-05-24