Inventor
Joel R. Dufresne
Inventor
St. Paul, MN, US
Overview
Patents· 24 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A61Nprimary
A61NElectrotherapy20%
Y10TTechnical subjects covered by former us classification18%
G01NInvestigating or analysing materials by determining their chemical or physical properties15%
A61BDiagnosis13%
B01LChemical or physical laboratory apparatus for general use10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
C03CChemical composition of glasses, glazes or vitreous enamels3%
C09KMaterials for miscellaneous applications, not provided for elsewhere3%
C23CCoating metallic material3%
F27BFurnaces, kilns, ovens or retorts in general3%
PatentTitleYear
8,865,091'Multilayer processing devices and methods'20148,594,339'Power management for medical sensing devices employing multiple sensor signal feature detection'20138,548,174'Modular electronic biosensor with interface for receiving disparate modules'20138,268,249'Analytical device with lightguide illumination of capillary and microgroove arrays'20127,718,133'Multilayer processing devices and methods'20107,507,376'Integrated sample processing devices'20097,189,361'Analytical device with lightguide Illumination of capillary and microgrooves arrays'20076,696,157'Diamond-like glass thin films'20046,627,159'Centrifugal filling of sample processing devices'2003D0463570'Sample processing device'20026,026,170'Electronic stethoscope with idealized bell and idealized diaphragm modes'20005,333,609'Catheter and probe-catheter assembly'1994D0338269'Ergonometric stethoscope chestpiece'1993D0337381'Ergonometric stethoscope chestpiece'19935,204,500'Ergonometric stethoscope chestpiece'19934,926,864'Biological tissue stimulator with time-shared logic driving output timing and high voltage step-up circuit'19904,917,093'Biological tissue stimulator with adjustable high voltage power supply dependent upon load impedance'1990D0303430'Transcutaneous electrical nerve stimulator'19894,803,986'Ergonometric transcutaneous electrical nerve stimulator'19894,706,674'Electrical stimulator for biological tissue utilizing output current monitor'19874,699,143'Electrical simulator for biological tissue having remote control'19874,690,145'Output limited electrical stimulator for biological tissue'19874,688,574'Electrical stimulator for biological tissue having mode control'19874,686,991'Electrical stimulator for biological tissue utilizing linear current output circuit'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–2000Patents assigned to MINNESOTA MINING & MFG (14)· patent assignee history
1987–2014Based in St. Paul, MN, US· patent location history
1987Based in Vadnais Heights, MN, US· patent location history
2002–2014Patents assigned to 3M INNOVATIVE PROPERTIES CO (9)· patent assignee history
2012–2014Patents assigned to DUFRESNE JOEL R (4)· patent assignee history
2013Patents assigned to CARIM HATIM M (2)· patent assignee history
2013Patents assigned to DRUMMOND THOMAS E (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MINNESOTA MINING & MFG | 14 | 1987–2000 |
| 3M INNOVATIVE PROPERTIES CO | 9 | 2002–2014 |
| DUFRESNE JOEL Rself | 4 | 2012–2014 |
| CARIM HATIM M | 2 | 2013 |
| DRUMMOND THOMAS E | 2 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| St. Paul, Minnesota, US | 21 | 1987–2014 |
| Vadnais Heights, Minnesota, US | 3 | 1987 |