Kenneth L. Smith has been granted 154 US patents while listed as an inventor at 3M . The first was granted in 1982 and the most recent in April 2024. Kenneth L. Smith ranks #5,907 of 4,157,543 US inventors in our database (top 0.14%). Patent records list Kenneth L. Smith in White Bear Lake, MN, US.
Patents per Year Patents granted per year, 1993 to 2024 Bar chart with a peak of 11 patents in 1999. peak 11 1993: 2 patents 1993 1995: 1 patents 1996: 8 patents 1997: 3 patents 1997 1998: 9 patents 1999: 11 patents 2000: 7 patents 2000 2001: 10 patents 2002: 5 patents 2003: 3 patents 2003 2005: 3 patents 2006: 1 patents 2007: 9 patents 2007 2008: 6 patents 2009: 4 patents 2010: 6 patents 2010 2011: 2 patents 2012: 5 patents 2013: 9 patents 2013 2014: 7 patents 2015: 4 patents 2016: 3 patents 2016 2017: 8 patents 2018: 4 patents 2019: 5 patents 2019 2020: 5 patents 2021: 3 patents 2022: 1 patents 2022 2023: 2 patents 2024: 1 patents 2024 Issued Patents All Time
Showing 51–75 of 154 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
8394485 Compound mold and structured surface articles containing geometric structures with compound faces and method of making same Gerald M. Benson 2013-03-12
$36,283,000
8371703 Retroreflective sheeting James R. Imbertson , John C. Kelliher , John A. Worrell , Sidney A. Ellingstad 2013-02-12
$18,259,000
8322425 System and method for controlling one or more fluid properties within a well in a geological volume — 2012-12-04
$127,503,000
8288651 Weatherproof connector — 2012-10-16
8262237 Retroreflective sheeting including cube corner elements — 2012-09-11
$12,027,000
8251525 Retroreflective sheeting including cube corner elements — 2012-08-28
$16,010,000
8163038 Low volatile sublimation printing Richard John Czarnecki , Mark D. Finley , Joseph Kissinger 2012-04-24
8016435 Lamina comprising cube corner elements and retroreflective sheeting — 2011-09-13
$28,655,000
7988318 Apparatus and method for illuminating blood Mark D. Hose 2011-08-02
7744228 Method of making retroreflective sheeting and articles — 2010-06-29
$10,926,000
D618838 Hand-held flashlight — 2010-06-29
7722197 Lamina comprising cube corner elements and retroreflective sheeting — 2010-05-25
$14,154,000
7712904 Structured surface articles containing geometric structures with compound faces and methods for making same Gerald M. Benson 2010-05-11
$18,313,000
7695180 Illumination assembly and system Craig R. Schardt , D. Scott Thompson , Kenneth A. Epstein , Brian W. Ostlie , Richard Griffith 2010-04-13
$19,619,000
7682037 Apparatus and method for illuminating blood Mark D. Hose , Charles Beyer 2010-03-23
7568807 Flexible cube-corner retroreflective sheeting Tzu-Li J. Huang , James C. Coderre 2009-08-04
$55,712,000
7562991 Structured surface articles containing geometric structures with compound faces and methods for making same Gerald M. Benson 2009-07-21
$80,139,000
7556386 Lamina comprising cube corner elements and retroreflective sheeting — 2009-07-07
$26,653,000
7554034 Weatherproof connector — 2009-06-30
7458694 Method of making retroreflective sheeting and articles — 2008-12-02
$20,257,000
7452588 Cube corner cavity based retroreflectors with transparent fill material Gerald M. Benson , James C. Coderre , Cheryl M. Frey , Bruce B. Wilson 2008-11-18
$35,447,000
7422334 Lamina comprising cube corner elements and retroreflective sheeting — 2008-09-09
$21,968,000
7401396 Methods of making microstructured lamina and apparatus Lars A. Smeenk , Conrad V. Anderson , Nelson D. Sewall 2008-07-22
$25,428,000
7384161 Structured surface articles containing geometric structures with compound faces and methods for making same Gerald M. Benson 2008-06-10
$14,038,000
7329012 Lamina comprising cube corner elements and retroreflective sheeting — 2008-02-12
$13,174,000
