LexDanaLexDanabeta
Inventor

John A. Barkanic

Inventor
Schnecksville, PA, US

Overview

2→
Patents
1988–1994
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere25%
H05KPrinted circuits25%
H10DInorganic electric semiconductor devices25%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1025%
PatentTitleYear
5,275,692'Method for fabricating integrated circuits'19944,787,957'Desmear and etchback using NF.sub.3 /O.sub.2 gas mixtures'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to AIR PROD & CHEM (1)· patent assignee history
1988–1994Based in Schnecksville, PA, US· patent location history
1994Patents assigned to KEYSTONE APPLIED RESEARCH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AIR PROD & CHEM11988
KEYSTONE APPLIED RESEARCH11994
Locations
LocationPatentsSpan
Schnecksville, Pennsylvania, US21988–1994