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Inventor

Harold C. Davidson

Inventor
Chillicothe, IL, US

Overview

3→
Patents
1978–2005
Patent span
Human necessities
Primary field (CPC A)

Patents· 3 as inventor

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

F02Dprimary
F02DControlling combustion engines33%
A61KPreparations for medical, dental or toiletry purposes17%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations17%
C07KPeptides17%
Y10TTechnical subjects covered by former us classification17%
PatentTitleYear
6,979,447'Immunomodulation and effect on cell processes relating to serotonin family receptors'20054,282,838'Engine overspeed shut-down system'19814,109,628'Adjustable regulation governor'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1981Patents assigned to CATERPILLAR TRACTOR CO (2)· patent assignee history
1978–1981Based in Chillicothe, IL, US· patent location history
2005Patents assigned to PHILADELPHIA HEALTH & EDUCATIO (1)· patent assignee history
2005Based in Philadelphia, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CATERPILLAR TRACTOR CO21978–1981
PHILADELPHIA HEALTH & EDUCATIO12005
Locations
LocationPatentsSpan
Chillicothe, Illinois, US21978–1981
Philadelphia, Pennsylvania, US12005