Inventor

David J. Lester

Inventor

Littleton, CO, US

Overview

1980–2001

Patent span

Human necessities

Primary field (CPC A)

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

A01Nprimary

A01NPreservation of bodies of humans or animals or plants or parts thereof12%

A41DOuterwear12%

A61BDiagnosis12%

A61FFilters implantable into blood vessels12%

A61LMethods or apparatus for sterilising materials or objects in general12%

A62DChemical means for extinguishing fires or for combating or protecting against harmful chemical agents12%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form12%

Y10TTechnical subjects covered by former us classification8%

C07JSteroids4%

LOC194%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1980Patents assigned to BARTON DEREK H R (1)· patent assignee history

1980Patents assigned to LESTER DAVID J (1)· patent assignee history

1980Patents assigned to LEY STEVEN V (1)· patent assignee history

1980Based in Gif sur Yvette, FR· patent location history

1996Patents assigned to SHLENKER ROBIN RENEE THILL (1)· patent assignee history

1996–1999Based in Littleton, CO, US· patent location history

1997–1999Patents assigned to BIO BARRIER INC (2)· patent assignee history

2001Based in Detroit, MI, US· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations