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Inventor

John M. Hefton

Inventor
New York, NY, US

Overview

3→
Patents
1981–1991
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.

A61Kprimary
A61KPreparations for medical, dental or toiletry purposes33%
C12NMicroorganisms or enzymes33%
A61LMethods or apparatus for sterilising materials or objects in general22%
A61FFilters implantable into blood vessels11%
PatentTitleYear
5,000,963'Method of treating the skin using human epidermal sheets'19914,769,317'Process for growing human epidermis, product thereof'19884,254,226'Process for growing human epidermal cells in tissue culture'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to SLOAN KETTERING INST CANCER (1)· patent assignee history
1981–1991Based in New York, NY, US· patent location history
1988–1991Patents assigned to HEFTON JOHN M (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HEFTON JOHN Mself21988–1991
SLOAN KETTERING INST CANCER11981
Locations
LocationPatentsSpan
New York, New York, US31981–1991