LexDanaLexDanabeta
Inventor

James Chamberlain

Inventor
Lake Forest, IL, US

Overview

2→
Patents
1983–1999
Patent span
Human necessities
Primary field (CPC A)

Patents· 2 as inventor

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

A63Bprimary
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing50%
H04NPictorial communication, e.g. television50%
PatentTitleYear
5,941,803'Exercise apparatus'19994,368,492'Vertical sync independent digital skew servo'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to RCA CORP (1)· patent assignee history
1983Based in Philadelphia, PA, US· patent location history
1999Based in Lake Forest, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RCA CORP11983
Locations
LocationPatentsSpan
Lake Forest, Illinois, US11999
Philadelphia, Pennsylvania, US11983