Inventor
David J. Johnsen
Inventor
New Hope, MN, US
Overview
Patents· 38 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Rprimary
H01RElectrically-conductive connections30%
H02BBoards, substations or switching arrangements for the supply or distribution of electric power13%
H02HEmergency protective circuit arrangements9%
H05KPrinted circuits9%
G01NInvestigating or analysing materials by determining their chemical or physical properties7%
H04QSelecting7%
B01DSeparation6%
F16LPipes6%
Y10TTechnical subjects covered by former us classification6%
LOC144%
PatentTitleYear
10,247,643System, method, and apparatus for determining air emissions during pig receiver depressurization201910,193,314Power distribution panel with modular circuit protection elements201910,168,255System, method, and apparatus for determining air emissions during pig receiver depressurization201910,024,768System, method, and apparatus for determining air emissions during pig receiver depressurization20188,940,077'Indirect real-time monitoring and control of electrical resistively heated adsorbent system'20158,850,898'Test fixture for strip samples'20148,848,346'Power distribution panel with modular circuit protection elements'2014RE045064'Power distribution bus with protection and alarming'20148,636,829'Gas purification system for liquefaction of dilute gas components'20148,500,853'Gas purification system and method for liquefaction of dilute gas components'20138,320,107'Modular power distribution system and methods'20127,898,787'Power panel with angled connectors'20117,839,623'Modular power distribution system and method'20107,768,760'Power distribution bus with protection and alarming'20107,669,316'Method for assembling coaxial cable Y-splitter assembly'20107,585,034'Power distribution panel with modular inserts'20097,500,884'Coaxial system with keying feature'20097,480,127'Power distribution bus with protection and alarming'20097,440,262'Modular power distribution system and methods'20087,329,155'Coaxial system with keying feature'20087,244,145'Coaxial cable-Y splitter assembly with transverse opening'20077,163,423'Coaxial system with keying feature'20077,120,002'Power distribution bus with protection and alarming'20067,094,971'Coaxial cable Y-splitter assembly and method'20067,086,898'Coaxial cable Y-splitter assembly with an integral splitter body and method'20067,005,996'Power distribution panel with modular inserts'20066,987,664'Finger guard for power distribution panel'20066,872,097'Dsx jack including sliding rear connector'20056,870,729'Finger guard for power distribution panel'20056,850,416'Communication panel'20056,775,120'Power distribution bus with protection and alarming'20046,761,594'DSX jack including sliding rear connector'20046,551,136'Closed end coaxial connector'20036,533,616'DSX jack including sliding rear connector'20036,503,105'Telecommunications jack subassembly'2003D0466111'Communications panel'2002D0465782'Communications panel'20026,457,999'DSX jack including sliding rear connector'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2014Patents assigned to ADC TELECOMMUNICATIONS INC (31)· patent assignee history
2002–2010Based in New Hope, MN, US· patent location history
2007–2019Based in Plymouth, MN, US· patent location history
2012–2013Patents assigned to JOHNSEN DAVID (2)· patent assignee history
2013–2015Patents assigned to UNIV ILLINOIS (3)· patent assignee history
2013–2015Based in Downers Grove, IL, US· patent location history
2014Patents assigned to JOHNSEN DAVID J (3)· patent assignee history
2018–2019Patents assigned to MARKWEST ENERGY PARTNERS L P (3)· patent assignee history
2018–2019Based in Denver, CO, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ADC TELECOMMUNICATIONS INC | 31 | 2002–2014 |
| JOHNSEN DAVID Jself | 3 | 2014 |
| MARKWEST ENERGY PARTNERS L P | 3 | 2018–2019 |
| UNIV ILLINOIS | 3 | 2013–2015 |
| JOHNSEN DAVIDself | 2 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| New Hope, Minnesota, US | 21 | 2002–2010 |
| Plymouth, Minnesota, US | 11 | 2007–2019 |
| Denver, CO, US | 3 | 2018–2019 |
| Downers Grove, Illinois, US | 3 | 2013–2015 |