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Inventor

John K. Irvine

Inventor
Etobicoke, CA

Overview

2→
Patents
1980–1991
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

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

A23Bprimary
A23BPreservation of foods, foodstuffs or non-alcoholic beverages25%
C11DDetergent compositions25%
F25CProducing, working or handling ice25%
F25DRefrigerators25%
PatentTitleYear
4,982,577'Cryogenic apparatus'19914,182,683'Process for the manufacture of a dishwashing detergent'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980Patents assigned to BERK GUNTER H (1)· patent assignee history
1980Patents assigned to IRVINE JOHN K (1)· patent assignee history
1980Patents assigned to MITCHELL MICHAEL D (1)· patent assignee history
1980Based in Rexdale, CA· patent location history
1991Patents assigned to I Q F INC (1)· patent assignee history
1991Based in Etobicoke, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BERK GUNTER H11980
I Q F INC11991
IRVINE JOHN Kself11980
MITCHELL MICHAEL D11980
Locations
LocationPatentsSpan
Etobicoke, CA11991
Rexdale, CA11980