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Inventor

Leonard R. Levy

Inventor
Framingham, MA, US

Overview

3→
Patents
1978–1985
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C23Fprimary
C23FNon-mechanical removal of metallic material from surface50%
C23CCoating metallic material25%
H05KPrinted circuits25%
PatentTitleYear
4,511,403'Immersion tin composition and process for using'19854,144,119'Etchant and process'19794,130,454'Etchant and process of etching with the same'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1979Patents assigned to DUTKEWYCH OLEH B (2)· patent assignee history
1978–1979Patents assigned to GAPUTIS CHARLES A (2)· patent assignee history
1978–1979Patents assigned to GULLA MICHAEL (2)· patent assignee history
1978–1979Patents assigned to LEVY LEONARD R (2)· patent assignee history
1978–1985Based in Framingham, MA, US· patent location history
1985Patents assigned to SHIPLEY CO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DUTKEWYCH OLEH B21978–1979
GAPUTIS CHARLES A21978–1979
GULLA MICHAEL21978–1979
LEVY LEONARD Rself21978–1979
SHIPLEY CO11985
Locations
LocationPatentsSpan
Framingham, Massachusetts, US31978–1985