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Inventor

Ed Piedra

Inventor
Chicopee, MA, US

Overview

1→
Patents
2002
Patent span
Performing operations
Primary field (CPC B)

Patents· 1 as inventor

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

B66Bprimary
B66BElevators50%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters50%
PatentTitleYear
6,492,788'Method and apparatus for encoderless operation of a permanent magnet synchronous motor in an elevator'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002Patents assigned to OTIS ELEVATOR CO (1)· patent assignee history
2002Based in Chicopee, MA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OTIS ELEVATOR CO12002
Locations
LocationPatentsSpan
Chicopee, Massachusetts, US12002