John A. Ramthun has been granted 6 US patents while listed as an inventor at 3M . The first was granted in 2001 and the most recent in December 2017. John A. Ramthun ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list John A. Ramthun in Hudson, WI, US.
Patents per Year Patents granted per year, 2001 to 2017 Bar chart with a peak of 2 patents in 2015. peak 2 2001: 1 patents 2001 2010: 1 patents 2010 2011: 1 patents 2011 2015: 2 patents 2015 2017: 1 patents 2017
Issued Patents All Time
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Showing 1–6 of 6 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
9841383 Multiscale uniformity analysis of a material Evan J. Ribnick , David Miller 2017-12-12
$34,740,000
9031312 Rapid processing and detection of non-uniformities in web-based materials Evan J. Ribnick , Kenneth G. Brittain , Derek H. Justice , Guillermo Sapiro 2015-05-12
$27,341,000
9002072 System for detection of non-uniformities in web-based materials Catherine P. Tarnowski , Kenneth G. Brittain , David L. Hofeldt , Andrzej P. Jaworski , Gregory D. Kostuch +4 more 2015-04-07
$32,682,000
7957000 Web inspection calibration system and related methods David L. Hofeldt , Derek H. Justice , Catherine P. Tarnowski , Wenyuan Xu 2011-06-07
$28,796,000
7773226 Web inspection calibration system and related methods David L. Hofeldt , Derek H. Justice , Catherine P. Tarnowski , Wenyuan Xu 2010-08-10
$17,150,000
6252237 Low cost thickness measurement method and apparatus for thin coatings Steven P. Floeder , Arthur T. Manning , Lanny L. Harklau , Gregory D. Kostuch , Jack W. Lai +1 more 2001-06-26
$34,249,000
