Inventor
Douglas E. Johnson
Inventor
Minneapolis, MN, US
Overview
Patents· 29 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A61Hprimary
A61HPhysical therapy apparatus, e.g. devices for locating or stimulating reflex points in the body9%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing9%
H01BCables9%
A61FFilters implantable into blood vessels7%
C10MLubricating compositions7%
A61DVeterinary instruments, implements, tools, or methods6%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions6%
A47LDomestic washing or cleaning4%
H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
9,701,889'Methods for treating siliciclastic hydrocarbon-bearing formations with fluorinated amine oxides'20179,649,243'Body lift-assist walker device'20179,561,149'Suspension and body attachment system and differential pressure suit for body weight support devices'20179,554,964'Suspension and body attachment system and differential pressure suit for body weight support devices'20179,492,258'Portable system for assisting body movement'20169,445,880'Portable system for assisting body movement'20168,957,312'Submersible composite cable and methods'20158,663,133'Portable system for assisting body movement'20148,653,370'Cable and method of making the same'20148,623,795'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'20148,618,031'Method for improving the deposit formation resistance performance of turbine oils containing amine antioxidants'20137,921,005'Method for selecting conductors of an overhead power transmission line'20117,879,778'Synthetic phenolic ether lubricant base stocks and lubricating oils comprising such base stocks mixed with co-base stocks and/or additives'20117,687,710'Overhead electrical power transmission line'20107,547,843'Overhead electrical power transmission line'20097,516,051'Overhead power transmission line conductor selection'20097,131,308'Method for making metal cladded metal matrix composite wire'20067,093,416'Cable and method of making the same'20066,559,385'Stranded cable and method of making'20036,321,546'Heat transfer system'20016,218,798'Central vacuum interface for air exchanger'20016,052,863'Central vacuum cleaner muffler'20005,737,797'Central vacuum with acoustical damping'19985,437,660'Tissue ablation and a lateral-lasing fiber optic device therefor'19955,200,101'Arylamine/hindered phenol, acid anhydride and thioester-derived multifunctional antioxidant, antiwear and rust inhibiting additives'19935,135,670'Sulfurized olefin extreme pressure/antiwear additives and compositions thereof'19924,529,958'Electrical resistor'19854,467,311'Electrical resistor'19844,338,978'Lead chloride battery plate'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1985Based in Columbus, NE, US· patent location history
1992–1993Based in Pennington, NJ, US· patent location history
1998–2001Based in Webster City, IA, US· patent location history
2003–2017Patents assigned to 3M INNOVATIVE PROPERTIES CO (10)· patent assignee history
2003–2017Based in Minneapolis, MN, US· patent location history
2011–2014Patents assigned to EXXONMOBIL RES & ENG CO (3)· patent assignee history
2011–2014Based in Cherry Hill, NJ, US· patent location history
2014–2017Patents assigned to JOHNSON DOUGLAS E (4)· patent assignee history
2014–2017Patents assigned to LITE RUN LLC (3)· patent assignee history
2016–2017Patents assigned to LITE RUN INC (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| 3M INNOVATIVE PROPERTIES CO | 10 | 2003–2017 |
| LITE RUN INC | 5 | 2016–2017 |
| JOHNSON DOUGLAS Eself | 4 | 2014–2017 |
| EXXONMOBIL RES & ENG CO | 3 | 2011–2014 |
| LITE RUN LLC | 3 | 2014–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Minneapolis, Minnesota, US | 16 | 2003–2017 |
| Cherry Hill, New Jersey, US | 3 | 2011–2014 |
| Webster City, IA, US | 3 | 1998–2001 |
| Pennington, New Jersey, US | 2 | 1992–1993 |
| Columbus, NE, US | 2 | 1984–1985 |