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Inventor

John S. Barnhart

Inventor
Champaign, IL, US

Overview

2→
Patents
1993–1994
Patent span
Human necessities
Primary field (CPC A)

Patents· 2 as inventor

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

A47Jprimary
A47JKitchen equipment67%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application33%
PatentTitleYear
5,287,919'Heat exchanger'19945,247,874'High-volume cooking'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–1994Patents assigned to GAS RES INST (2)· patent assignee history
1993–1994Based in Champaign, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GAS RES INST21993–1994
Locations
LocationPatentsSpan
Champaign, Illinois, US21993–1994