Inventor

Stephen M. Imfeld

Inventor
Mason, OH, US

Overview

13→
Patents
1991–2020
Patent span
Chemistry
Primary field (CPC C)

Patents· 13 as inventor

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

C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds21%
C08JWorking-up21%
C08LCompositions of macromolecular compounds15%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients13%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
Y10TTechnical subjects covered by former us classification5%
B29CShaping or joining of plastics3%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts3%
C10MLubricating compositions3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991Patents assigned to DOW CHEMICAL CO (1)· patent assignee history
1991Based in Pataskala, OH, US· patent location history
1995–2020Based in Mason, OH, US· patent location history
2002–2020Patents assigned to EQUISTAR CHEM LP (10)· patent assignee history
2013–2014Patents assigned to IMFELD STEPHEN M (2)· patent assignee history
2013Patents assigned to BORKE JEFFREY S (1)· patent assignee history
2013Patents assigned to MCFADDIN DOUGLAS C (1)· patent assignee history
2020Based in Cincinnati, OH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
EQUISTAR CHEM LP102002–2020
IMFELD STEPHEN Mself22013–2014
BORKE JEFFREY S12013
DOW CHEMICAL CO11991
MCFADDIN DOUGLAS C12013
Locations
LocationPatentsSpan
Mason, OH, US111995–2020
Cincinnati, OH, US12020
Pataskala, OH, US11991