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Inventor

Roy Winteringham

Inventor
Hockessin, DE, US

Overview

3→
Patents
1990–1992
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C01Bprimary
C01BNon-metallic elements43%
C07CAcyclic or carbocyclic compounds43%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
5,094,773'Azeotropes of HF and process for the separation of HF via azeotropic distillation'19924,944,846'Process for the separation of HF via Azeotropic distillation'19904,911,792'Process for the separation of HF via phase separation and distillation'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1992Patents assigned to DU PONT (3)· patent assignee history
1990–1992Based in Hockessin, DE, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DU PONT31990–1992
Locations
LocationPatentsSpan
Hockessin, Delaware, US31990–1992