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Inventor

Carl Heldwein

Inventor
Palm City, FL, US

Overview

3→
Patents
1980–2004
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

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

B66Bprimary
B66BElevators67%
G01SRadio direction-finding33%
PatentTitleYear
6,701,277'Elevator car position sensing system'20046,526,368'Elevator car position sensing system'20034,229,737'Ranging system and method for determining the range of a vehicle from a plurality of reference points'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980Patents assigned to CUBIC WESTERN DATA (1)· patent assignee history
1980Based in San Diego, CA, US· patent location history
2003–2004Patents assigned to OTIS ELEVATOR CO (2)· patent assignee history
2003–2004Based in Palm City, FL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OTIS ELEVATOR CO22003–2004
CUBIC WESTERN DATA11980
Locations
LocationPatentsSpan
Palm City, Florida, US22003–2004
San Diego, California, US11980