Inventor

John D. Dell

Inventor

St. Paul, MN, US

Overview

1985–2016

Patent span

Human necessities

Primary field (CPC A)

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A61Lprimary

A61LMethods or apparatus for sterilising materials or objects in general20%

A61MDevices for introducing media into, or onto, the body15%

A01NPreservation of bodies of humans or animals or plants or parts thereof10%

A45DHairdressing or shaving equipment5%

A61KPreparations for medical, dental or toiletry purposes5%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations5%

B01DSeparation5%

B05CApparatus for applying fluent materials to surfaces, in general5%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%

C08LCompositions of macromolecular compounds5%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1985–1994Patents assigned to MINNESOTA MINING & MFG (3)· patent assignee history

1985–2016Based in St. Paul, MN, US· patent location history

2007–2016Patents assigned to 3M INNOVATIVE PROPERTIES CO (3)· patent assignee history

2012Patents assigned to ASMUS ROBERT A (1)· patent assignee history

2012Patents assigned to DAVIS ROBERT A (1)· patent assignee history

2012Patents assigned to DELL JOHN D (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Locations

Location	Patents	Span
St. Paul, Minnesota, US	6	1985–2016