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Inventor

D. Richard Schafer

Inventor
Easthampton, MA, US

Overview

3→
Patents
2000–2017
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
B66BElevators33%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding17%
G01SRadio direction-finding17%
H04BTransmission17%
Y10TTechnical subjects covered by former us classification17%
PatentTitleYear
9,539,713'Automotive tool for engagement and removal of an inside door handle cable sheath bushing'20176,526,368'Elevator car position sensing system'20036,128,116'Retroreflective elevator hoistway position sensor'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2003Patents assigned to OTIS ELEVATOR CO (2)· patent assignee history
2000–2003Based in Easthampton, MA, US· patent location history
2017Patents assigned to LISLE CORP (1)· patent assignee history
2017Based in Columbus, NE, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OTIS ELEVATOR CO22000–2003
LISLE CORP12017
Locations
LocationPatentsSpan
Easthampton, Massachusetts, US22000–2003
Columbus, NE, US12017