Douglas Barnhardt has been granted 6 US patents while listed as an inventor at Multi-Color . The first was granted in 2014 and the most recent in October 2025. Douglas Barnhardt ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Douglas Barnhardt in Sharonville, OH, US.
Patents per Year Patents granted per year, 2014 to 2020 Bar chart with a peak of 2 patents in 2019. peak 2 2014: 1 patents 2014 2018: 1 patents 2018 2019: 2 patents 2019 2020: 1 patents 2020
Issued Patents All Time
Profile Widget
Showing 1–6 of 6 patents
Patent # Title Co-Inventors Date
12444324 Pressure-sensitive label Barron G. McKillip , Stephen Riccardi , Floyd Needham , A. Craig Bushman 2025-10-14
10650706 Pressure-sensitive label Barron G. McKillip , Stephen Riccardi , Floyd Needham , A. Craig Bushman 2020-05-12
10328668 Heat transfer label assembly Saifuddin M. Ansari , Bret Arnone 2019-06-25
10325528 Pressure-sensitive label Barron G. McKillip , Stephen Riccardi , Floyd Needham , A. Craig Bushman 2019-06-18
10160258 Digitally printed heat transfer label and method of making a decorated article Saifuddin M. Ansari , Bret Arnone , Robert J. Wojewoda 2018-12-25
8709556 Heat transfer label for decorating a metal container Saifuddin M. Ansari , Ignatius S. Yee , Robert J. Wojewoda 2014-04-29