LexDanaLexDanabeta
Inventor

David W. Hutchinson

Inventor
Hempfield Township, Westmoreland County, PA, US

Overview

2→
Patents
1976–1980
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 2 as inventor

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

Y10Sprimary
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests33%
C04BLime, magnesia17%
C07HSugars17%
E21FSafety devices, transport, filling-up, rescue, ventilation, or draining in or of mines or tunnels17%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management17%
PatentTitleYear
4,208,217'Method of stabilizing aqueous fine coal slurry and product thereof'19803,935,185'Polynucleotides of poly(5-hydroxycytidylic acids)'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to SEARLE & CO (1)· patent assignee history
1976Based in Leamington Spa, GB· patent location history
1980Patents assigned to UNITED STATES STEEL CORP (1)· patent assignee history
1980Based in Hempfield Township, Westmoreland County, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEARLE & CO11976
UNITED STATES STEEL CORP11980
Locations
LocationPatentsSpan
Hempfield Township, Westmoreland County, Pennsylvania, US11980
Leamington Spa, GB11976