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Inventor

Robert D. Simpson

Inventor
Philadelphia, PA, US

Overview

2→
Patents
2001–2003
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds25%
C07DHeterocyclic compounds25%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium25%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds25%
PatentTitleYear
6,613,915'Polymerization of olefins'20036,174,975'Polymerization of olefins'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2003Patents assigned to DU PONT (2)· patent assignee history
2001–2003Based in Philadelphia, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DU PONT22001–2003
Locations
LocationPatentsSpan
Philadelphia, Pennsylvania, US22001–2003