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USPTO Patent Rankings Data through Dec 31, 2025
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Wilhelm Dichter — 4 Patents

LALinotype-Hell Ag: 4 patents #2 of 64Top 4%
Tewksbury, MA: #99 of 382 inventorsTop 30%
Massachusetts: #27,912 of 88,656 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Wilhelm Dichter has been granted 4 US patents while listed as an inventor at Linotype-Hell Ag. The first was granted in 1994 and the most recent in October 2000. Wilhelm Dichter ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Wilhelm Dichter in Tewksbury, MA, US.

Patents per Year

Patents granted per year, 1994 to 2000Bar chart with a peak of 1 patents in 1994.peak 11994: 1 patents19941996: 1 patents19961997: 1 patents19972000: 1 patents2000

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6137903 Color transformation system based on target color image 2000-10-24
5612795 HSL corrections in CMY color space 1997-03-18
5502642 HSL neighborhoods in CMY color space 1996-03-26
5359436 Black recalculation for arbitrary HSL corrections in CMY color space Eggert Jung 1994-10-25