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Inventor

Leonard J. Rosen

Inventor
Brookline, MA, US

Overview

3→
Patents
1998–2002
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G09Bprimary
G09BEducational or demonstration appliances33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests33%
H04MTelephonic communication17%
H04WWireless communication networks17%
PatentTitleYear
6,470,187'Multi-base station cordless telephone'20026,198,904'Interactive learning system'20015,772,446'Interactive learning system'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2001Based in Brookline, MA, US· patent location history
2001Patents assigned to STUDENT ADVANTAGE INC (1)· patent assignee history
2002Based in Quebec, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
STUDENT ADVANTAGE INC12001
Locations
LocationPatentsSpan
Brookline, Massachusetts, US21998–2001
Quebec, CA12002