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Inventor

Frederick S. Przystal

Inventor
Oakville, CA

Overview

2→
Patents
1978–1994
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C01Bprimary
C01BNon-metallic elements33%
C10GCracking hydrocarbon oils33%
C10MLubricating compositions33%
PatentTitleYear
5,324,499'Fluoride removal from sulphuric acid'19944,124,492'Process for the reclamation of waste hydrocarbon oils'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978Patents assigned to CANADIAN IND (1)· patent assignee history
1978Based in St-Bruno, CA· patent location history
1994Patents assigned to CHEMETICS INT (1)· patent assignee history
1994Based in Oakville, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANADIAN IND11978
CHEMETICS INT11994
Locations
LocationPatentsSpan
Oakville, CA11994
St-Bruno, CA11978