Mark D. Johnson has been granted 23 US patents while listed as an inventor at Master Lock Company . The first was granted in 1983 and the most recent in March 2022. Mark D. Johnson ranks #178,160 of 4,157,543 US inventors in our database (top 4.3%). Patent records list Mark D. Johnson in Sioux Falls, SD, US.
Patents per Year Patents granted per year, 1983 to 2022 Bar chart with a peak of 2 patents in 1989. peak 2 1983: 1 patents 1983 1988: 1 patents 1989: 2 patents 1989 1993: 1 patents 1994: 1 patents 1994 2006: 2 patents 2007: 1 patents 2007 2008: 2 patents 2009: 2 patents 2009 2010: 1 patents 2011: 1 patents 2011 2013: 2 patents 2015: 1 patents 2015 2018: 1 patents 2019: 2 patents 2019 2021: 1 patents 2022: 1 patents 2022
Issued Patents All Time
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Showing 1–23 of 23 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
11268714 System and method for controlling building fluid distribution — 2022-03-08
11118658 Device and method with multiple torque and speed ranges — 2021-09-14
10344493 Cleaning head for an in-floor pool cleaning system Mark Scatterday , Michael Landis , Jason Addink , David G. Johnson , Robert M. Long +1 more 2019-07-09
D841559 Lift tool box — 2019-02-26
9988186 Tool storage device — 2018-06-05
9093772 Lockout device Ray Wojtak 2015-07-28
8459070 Combination locks with improved code-changing features Rafael Hiram Gutierrez Medina 2013-06-11
$38,584,000
8402798 Locking clamp Michael Brojanac , Frank Scott , John Weber 2013-03-26
$38,905,000
D648207 Keyhead cover — 2011-11-08
7752876 Lockout device Glenn Meekma , Christopher J. Rohde , Jesse Marcelle , Michael Brojanic 2010-07-13
$13,803,000
7497705 Lockout device Dwayne Larson , Michael Brojanac , Joe Elliott 2009-03-03
$11,511,000
7474537 Circuit board with multiple layer interconnect and method of manufacture Michael Kelly , Jeffrey P. Tobin , William H. Sisson 2009-01-06
7359198 System and method for inducing turbulence in fluid for dissipating thermal energy of electronic circuitry Michael Kelly , William H. Sisson , Jeffrey P. Tobin 2008-04-15
7313945 Cantilevers for sensing fluid properties Manish Giri , Mark Sanders Taylor , Sriram Ramamoorthi , Jeremy Donaldson , Joshua M. Yu 2008-01-01
7197904 Lockout device Jesse Marcelle , Glenn Meekma , Christopher J. Rohde 2007-04-03
$17,995,000
D518093 Printer Andre De Salis , Jayson Pegler , Hector Santos , Tim Chuang , Holger Hampf +5 more 2006-03-28
7002820 Semiconductor storage device Zhizhang Chen , Lung Tran 2006-02-21
$13,753,000
5304141 Method and apparatus for inducing anesthesia Vladimir Bittner 1994-04-19
5232442 Method and apparatus for inducing anesthesia Vladimir Bittner 1993-08-03
4869844 High solids liquid alkaline cleaners — 1989-09-26
4824586 Metal working lubricant Nelson W. Smith 1989-04-25
$4,247,000
4741176 Beverage cooler George Spector 1988-05-03
4396032 Safety underwater pressure regulator Claude A. Duchesne 1983-08-02
