Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
ZP

Zbigniew Piech — 50 Patents

OEOtis Elevator: 43 patents #11 of 1,840Top 1%
CACarrier: 3 patents #673 of 2,507Top 30%
RTX (Raytheon): 2 patents #5,352 of 15,912Top 35%
Cheshire, CT: #10 of 532 inventorsTop 2%
Connecticut: #470 of 34,797 inventorsTop 2%
Overall (All Time): #53,743 of 4,157,543Top 2%
50 Patents All Time
Zbigniew Piech has been granted 50 US patents while listed as an inventor at Otis Elevator. The first was granted in 1997 and the most recent in October 2021. Zbigniew Piech ranks #53,743 of 4,157,543 US inventors in our database (top 1.3%). Patent records list Zbigniew Piech in Cheshire, CT, US.

Issued Patents All Time

Showing 1–25 of 50 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11146140 Universal electromagnetic machine Tadeusz Pawel Witczak, Wojciech Szelag, Cezary Jedryczka, Stella M. Oggianu, Adam Marian Myszkowski 2021-10-12
11001477 Elevator linear propulsion system with cooling device Ram Ranjan, Enrico Manes, Bryan Robert Siewert 2021-05-11
10958123 Electromagnetic machine Tadeusz Pawel Witczak, Stella M. Oggianu, Cezary Jedryczka, Wojciech Szelag, Adam Marian Myszkowski 2021-03-23
10910903 Dual rotor, coreless, electromagnetic machine Tadeusz Pawel Witczak, Cezary Jedryczka, Wojciech Szelag, Stella M. Oggianu 2021-02-02
10865071 Configurable multicar elevator system Randall Keith Roberts, Adam Marian Myszkowski, Cezary Jedryczka, Wojciech Szelag, Tadeusz Pawel Witczak +3 more 2020-12-15
10781075 Emergency safety actuator for an elevator Tadeusz Pawel Witczak, Daryl J. Marvin 2020-09-22
10752466 Transfer station for a ropeless elevator system with redundancy of subcomponents and parking zone Cezary Jedryczka, Adam Marian Myszkowski, Tadeusz Pawel Witczak, Bruce P. Swaybill, Wojciech Szelag +2 more 2020-08-25
10745247 Elevator car guidance mechanism Tadeusz Pawel Witczak, Richard N. Fargo, Enrico Manes, Bruce P. Swaybill, Richard J. Ericson +2 more 2020-08-18
10686357 Door operator with switched flux linear motor Amy Robinson 2020-06-16
10486940 Alignment system for an elevator car Tadeusz Pawel Witczak, Bruce P. Swaybill, Richard J. Ericson, Richard E. Kulak 2019-11-26
10384913 Thermal management of linear motor Walter Thomas Schmidt, Enrico Manes, Beata I. Wawrzyniak, Thomas M. Yun, Shihemn Chen +1 more 2019-08-20
10336577 Braking system for an elevator system Tadeusz Pawel Witczak 2019-07-02
10294074 Elevator recovery car Mark Olthuis, Xiaodong Luo, Randall Keith Roberts, Tadeusz Pawel Witczak 2019-05-21
10268166 Intelligent surface systems for building solutions Tadeusz Pawel Witczak, Marcin Piech, Daryl J. Marvin, Stella M. Oggianu 2019-04-23
10246298 Ropeless elevator system Tadeusz Pawel Witczak 2019-04-02
10196233 Elevator system assigning cars to floor groups Tadeusz Pawel Witczak 2019-02-05
10199889 Electric machine having rotor with slanted permanent magnets Jagadeesh Kumar Tangudu, Richard A. Himmelmann 2019-02-05
10196240 Wireless power supply for self-propelled elevator Wojciech Szelag, Rafal Wojciechowski, Cezary Jedryczka 2019-02-05
10189679 Elevator car power supply Tadeusz Pawel Witczak, Wojciech Szelag, Cezary Jedryczka, Bryan Robert Siewert 2019-01-29
10118799 Multicar self-propelled elevator system 2018-11-06
10059566 Connecting cars in a multicar elevator system Tadeusz Pawel Witczak 2018-08-28
9950902 Stator structure for self-propelled elevator Adam Marian Myszkowski, Cezary Jedryczka, Wojciech Szelag 2018-04-24
9932204 Drive unit for multiphase permanent magnet synchronous motor Cezary Jedryczka, Wojciech Szelag 2018-04-03
9915307 Brake Adrian D. West, Daryl J. Marvin, Harold Terry 2018-03-13
9884744 Ropeless high-rise elevator installation approach Tadeusz Pawel Witczak, Martin J. Hardesty 2018-02-06