Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Douglas E. Johnson — 18 Patents

LRLite Run: 6 patents #1 of 5Top 20%
ExxonMobil: 5 patents #2,147 of 10,161Top 25%
WIWhite Consolidated Industries: 3 patents #58 of 415Top 15%
DEDale Electronics: 2 patents #8 of 27Top 30%
IUIowa State University: 2 patents #368 of 1,643Top 25%
SPSparton: 1 patents #27 of 62Top 45%
Minneapolis, MN: #304 of 6,114 inventorsTop 5%
Minnesota: #4,045 of 52,454 inventorsTop 8%
Overall (All Time): #245,716 of 4,157,543Top 6%
18 Patents All Time
Douglas E. Johnson has been granted 18 US patents while listed as an inventor at Lite Run. The first was granted in 1982 and the most recent in May 2017. Douglas E. Johnson ranks #245,716 of 4,157,543 US inventors in our database (top 5.9%). Patent records list Douglas E. Johnson in Minneapolis, MN, US.

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9649243 Body lift-assist walker device John A. Hauck, Odd Osland, Mark Thomas Johnson, Peter M. Bobgan 2017-05-16
9561149 Suspension and body attachment system and differential pressure suit for body weight support devices John A. Hauck, Odd Osland, Mark Thomas Johnson 2017-02-07
9554964 Suspension and body attachment system and differential pressure suit for body weight support devices John A. Hauck, Odd Osland, Mark Thomas Johnson 2017-01-31
9492258 Portable system for assisting body movement John A. Hauck, Odd Osland, Mark Thomas Johnson 2016-11-15
9445880 Portable system for assisting body movement John A. Hauck, Odd Osland, Mark Thomas Johnson 2016-09-20
8663133 Portable system for assisting body movement John A. Hauck, Odd Osland, Mark Thomas Johnson 2014-03-04
8623795 Method for maintaining antiwear performance of turbine oils containing polymerized amine antioxidants and for improving the deposit formation resistance performance of turbine oils containing monomeric and/or polymeric antioxidants Michael R. Douglass, Susan Ardito 2014-01-07 $113,127,000
8618031 Method for improving the deposit formation resistance performance of turbine oils containing amine antioxidants Michael R. Douglass, Susan Ardito 2013-12-31 $86,978,000
7879778 Synthetic phenolic ether lubricant base stocks and lubricating oils comprising such base stocks mixed with co-base stocks and/or additives Marc-Andre Poirier 2011-02-01 $285,956,000
6321546 Heat transfer system Jon Lucas 2001-11-27
6218798 Central vacuum interface for air exchanger Tamara Price, Mitch Koestner, Vern Cunningham 2001-04-17
6052863 Central vacuum cleaner muffler Stephen P. Rittmueller, J. Adin Mann, III, David K. Holger 2000-04-25
5737797 Central vacuum with acoustical damping Stephen P. Rittmueller, Steven D. Lauritsen, J. Adin Mann, III, David K. Holger 1998-04-14
5200101 Arylamine/hindered phenol, acid anhydride and thioester-derived multifunctional antioxidant, antiwear and rust inhibiting additives Shin-Ying Hsu, Andrew G. Horodysky, David A. Blain 1993-04-06 $14,072,000
5135670 Sulfurized olefin extreme pressure/antiwear additives and compositions thereof Andrew G. Horodysky, William F. Olszewski 1992-08-04 $32,153,000
4529958 Electrical resistor Herman R. Person 1985-07-16 $510,000
4467311 Electrical resistor Herman R. Person 1984-08-21 $704,000
4338978 Lead chloride battery plate John L. Devitt, Robert S. Willard 1982-07-13 $405,000