LexDanaLexDanabeta
Inventor

Sidney S. Seffren

Inventor
Philadelphia, PA, US

Overview

2→
Patents
1982–1983
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.

C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds25%
G11BInformation storage based on relative movement between record carrier and transducer25%
H01BCables25%
H01FMagnets25%
PatentTitleYear
4,401,775'Epoxy encapsulating formulation'19834,315,269'Thick protective overcoat layer for optical video disc'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1983Patents assigned to RCA CORP (2)· patent assignee history
1982Based in Philadephia, PA, US· patent location history
1983Based in Philadelphia, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RCA CORP21982–1983
Locations
LocationPatentsSpan
Philadelphia, Pennsylvania, US11983
Philadephia, Pennsylvania, US11982