RU

Robert Ulichney

HP HP: 56 patents #89 of 16,619Top 1%
DE Digital Equipment: 12 patents #49 of 2,100Top 3%
CC Compaq Computer: 11 patents #77 of 1,604Top 5%
PF Purdue Research Foundation: 2 patents #773 of 3,174Top 25%
CG Compaq Information Technologies Group: 1 patents #84 of 407Top 25%
Overall (All Time): #22,193 of 4,157,543Top 1%
81
Patents All Time

Issued Patents All Time

Showing 1–25 of 81 patents

Patent #TitleCo-InventorsDate
11423505 Encoded monochrome images of data-hiding watermarks Greg Smith, William J. Allen 2022-08-23
11277539 Encoding information using disjoint highlight and shadow dot patterns Matthew D. Gaubatz 2022-03-15
11263784 Determine image capture position information based on a quasi-periodic pattern Matthew D. Gaubatz, Stephen Pollard 2022-03-01
11247401 Density rank matrix normalization for three-dimensional printing 2022-02-15
11167481 Multiscale density threshold matrices for 3D printing Andrew E. Fitzhugh 2021-11-09
11113592 Data-bearing medium Matthew D. Gaubatz, Stephen Pollard 2021-09-07
11102376 Recursive halftoning and gray value substitution Matthew D. Gaubatz, Stephen Pollard 2021-08-24
11089180 Encoding dot patterns into printed images based on source pixel color Matthew D. Gaubatz 2021-08-10
11029665 Density rank matrix generation for three-dimensional printing 2021-06-08
11030502 Omnidirectional barcode Matthew D. Gaubatz 2021-06-08
10977466 Multi-dimensional cyclic symbols Matthew D. Gaubatz, Steven J. Simske 2021-04-13
10891704 M-ary cyclic coding Steven J. Simske, Matthew D. Gaubatz 2021-01-12
10791239 Encoding information in printed images by decreasing grayscale pixel values exceeding threshold Matthew D. Gaubatz 2020-09-29
10621688 M-ary cyclic coding Steven J. Simske, Matthew D. Gaubatz 2020-04-14
10592790 Parallel image processes Yafei Mao, Jan Allebach, Lluis Abello Rosello, Joan Vidal Fortia, Utpal Kumar Sarkar 2020-03-17
10587774 3D printed object halftone image generation containing updated voxel data Ruiyi Mao, Jan Allebach, Wanling Jiang, Lluis Abello Rosello, Utpal Kumar Sarkar 2020-03-10
10560117 Groups of phase invariant codewords Matthew D. Gaubatz, Steven J. Simske 2020-02-11
10530967 Assigning halftone screens to clustered image portions based on color and content Tal Frank, Altyngul Jumabayeva, Jan Allebach, Yotam Ben-Shoshan 2020-01-07
10521931 Determine image capture position information based on a quasi-periodic pattern Matthew D. Gaubatz, Stephen Pollard 2019-12-31
10362194 Recursive halftoning and gray value substitution Matthew D. Gaubatz, Stephen Pollard 2019-07-23
10223800 Determine presence of quasi-periodic two-dimensional object Matthew D. Gaubatz, Stephen Pollard 2019-03-05
10171723 Frequency domain range determination for a periodic or quasi-periodic target Matthew D. Gaubatz, Stephen Pollard 2019-01-01
10171107 Groups of phase invariant codewords Matthew D. Gaubatz, Steven J. Simske 2019-01-01
10154165 Multiple payload pantographs Jason S. Aronoff, Steven J. Simske, Matthew D. Gaubatz 2018-12-11
10027843 Embedding data in halftone images Matthew D. Gaubatz, Stephen Pollard 2018-07-17