Inventor
David J. Prince
Inventor
St. Paul, MN, US
Overview
Patents· 58 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A47Bprimary
A47BTables12%
F16MFrames, casings or beds of engines, machines or apparatus, not specific to engines, machines or apparatus provided for elsewhere12%
LOC0812%
G06FElectric digital data processing7%
H02JElectric power networks7%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers6%
LOC146%
LOC103%
A47CChairs2%
A47GHousehold or table equipment2%
PatentTitleYear
11,112,057Display mounting system and method202111,071,377Height adjustable platforms and associated mechanisms202110,981,099Expandable air filters202110,939,750Height adjustable device with concealed lift mechanism202110,940,416Air filter devices with gap sealing unit2021D0908303Workstation2021D0889935Articulating arm assembly202010,631,630Height adjustable device with concealed lift mechanism2020D0874902Articulating arm assembly202010,476,285Tablet storage and transportation device201910,433,638Height adjustable device with concealed lift mechanism201910,390,636Canvas mounting device201910,259,194Mounting system2019D0829215Stand201810,044,203Tablet storage and transportation device20189,967,673Acoustic transducer comprising a plurality of coaxially arranged diaphragms2018D0809413'Watch face'2018D0802599'Mouse pad with wrist rest'2017D0795517'Cleaning tool'2017D0794710'Dispenser'2017D0794425'Mounting device'2017D0794424'Mounting device'2017D0789764'Tool handle'20179,665,135'Device storage cabinet'2017D0784722'Caddy'2017D0780491'Stand'2017D0771476'Handle holder'20169,462,388'Acoustic transducer comprising a plurality of coaxially arranged diaphragms'20169,298,225'Tablet storage device'20169,263,869'Cart with cable management system'2016D0743827'Watch face'20159,182,793'Tablet storage and transportation device'20159,140,405'Multi-axis pivot system and method'20159,030,828'Tablet storage device'20158,897,472'Acoustic transducer comprising a plurality of coaxially arranged diaphragms'20148,884,773'Shore power cord set'20148,718,298'NVH dependent parallel compression processing for automotive audio systems'20148,474,915'Adjustable ergonomic chair'20138,246,095'Cable clasp'2012D0655513'Fabric sweeper'20128,052,217'Adjustable ergonomic chair'2011D0646638'Electrical cord end'20117,853,025'Vehicular audio system including a headliner speaker, electromagnetic transducer assembly for use therein and computer system programmed with a graphic software control for changing the audio system\'s signal level and delay'2010D0623920'Set of tool handles'2010D0623148'Electrical instrument'2010D0615430'Electrical probe'2010D0613137'Cable tool'2010D0612338'Electrical instrument'2010D0609998'Clasp'2010D0608191'Clasp'2010D0599288'Low voltage outdoor lighting power supply'20097,536,019'Audio system for use with a vehicle'2009D0573586'Loudspeaker'2008D0567212'Loudspeaker'2008D0567213'Loudspeaker'20087,050,593'Vehicular audio system and electromagnetic transducer assembly for use therein'20066,959,956'Acoustically transparent visor'20056,899,381'Vehicle headliner with a flexible duct'2005Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2005–2014Patents assigned to LEAR CORP (6)· patent assignee history
2005–2018Based in Villa Park, IL, US· patent location history
2009–2012Patents assigned to ACTUANT CORP (10)· patent assignee history
2009–2014Based in Eau Claire, WI, US· patent location history
2012–2014Patents assigned to PRINCE DAVID J (6)· patent assignee history
2012–2021Based in St. Paul, MN, US· patent location history
2015–2021Patents assigned to ERGOTRON INC (16)· patent assignee history
2016–2021Patents assigned to 3M INNOVATIVE PROPERTIES CO (14)· patent assignee history
2021Based in Saint Paul, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ERGOTRON INC | 16 | 2015–2021 |
| 3M INNOVATIVE PROPERTIES CO | 14 | 2016–2021 |
| ACTUANT CORP | 10 | 2009–2012 |
| LEAR CORP | 6 | 2005–2014 |
| PRINCE DAVID Jself | 6 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| St. Paul, Minnesota, US | 31 | 2012–2021 |
| Eau Claire, WI, US | 13 | 2009–2014 |
| Villa Park, Illinois, US | 12 | 2005–2018 |
| Saint Paul, Minnesota, US | 2 | 2021 |