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Inventor

Pawel Witczak

Inventor
Lodz, PL

Overview

3→
Patents
2014–2016
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
B66BElevators30%
B66DCapstans20%
H02KDynamo-electric machines20%
Y10TTechnical subjects covered by former us classification20%
H01FMagnets10%
PatentTitleYear
9,457,994'Method of assembling an elevator machine frame'20168,776,953'Magnetic elevator door coupler'20148,631,907'Elevator machine frame'2014

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2014–2016Patents assigned to OTIS ELEVATOR CO (3)· patent assignee history
2014Patents assigned to PIECH ZBIGNIEW (2)· patent assignee history
2014Patents assigned to WITCZAK PAWEL (2)· patent assignee history
2014Patents assigned to DRIESCH PATRICIA L (1)· patent assignee history
2014Patents assigned to HAN HAKKI (1)· patent assignee history
2014–2016Based in Lodz, PL· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OTIS ELEVATOR CO32014–2016
PIECH ZBIGNIEW22014
WITCZAK PAWELself22014
DRIESCH PATRICIA L12014
HAN HAKKI12014
Locations
LocationPatentsSpan
Lodz, PL32014–2016