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USPTO Patent Rankings Data through Dec 31, 2025
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Samuel C. Wan — 24 Patents

OEOtis Elevator: 24 patents #47 of 1,840Top 3%
Simsbury, CT: #17 of 374 inventorsTop 5%
Connecticut: #1,575 of 34,797 inventorsTop 5%
Overall (All Time): #168,038 of 4,157,543Top 5%
24 Patents All Time
Samuel C. Wan has been granted 24 US patents while listed as an inventor at Otis Elevator. The first was granted in 1997 and the most recent in August 2009. Samuel C. Wan ranks #168,038 of 4,157,543 US inventors in our database (top 4.0%). Patent records list Samuel C. Wan in Simsbury, CT, US.

Patents per Year

Patents granted per year, 1997 to 2009Bar chart with a peak of 10 patents in 1998.peak 101997: 6 patents19971998: 10 patents19981999: 5 patents19992000: 1 patents20002001: 1 patents20012009: 1 patents2009

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7575099 Remotely resettable ropeless emergency stopping device for an elevator Jae-Hyuk Oh, Robin Mihekun Miller, Richard E. Peruggi, Anthony Cooney, Adriana Bacellar +1 more 2009-08-18 $51,507,000
6193016 Dual sheave rope climber using flat flexible ropes Richard L. Hollowell, Guillaume Bonatre 2001-02-27 $90,715,000
6161653 Ropeless governor mechanism for an elevator car Clement A. Skalski, Richard W. Calcasola 2000-12-19 $46,485,000
5950769 Bridge rails for horizontally moveable passenger or freight cab Frederick H. Barker 1999-09-14 $22,289,000
5931265 Rope climbing elevator Richard L. Hollowell 1999-08-03 $19,060,000
5924524 Integrated, multi-level elevator shuttle Frederick H. Barker, Gilbert W. Wierschke, Paul Bennett, Anthony Cooney, Richard C. McCarthy +2 more 1999-07-20 $49,081,000
5862886 Pretorque to unload elevator car/floor locks before retraction Paul Bennett, Bruce A. Powell, Anthony Cooney, Richard C. McCarthy, Joseph Bittar +3 more 1999-01-26 $17,469,000
5861586 Horizontal and vertical passenger transport Richard C. McCarthy, Joseph Bittar, Frederick H. Barker, Bruce A. Powell, Paul Bennett +2 more 1999-01-19 $21,841,000
5829553 Fail-safe movement of elevator cabs between car frames and landings Bruce A. Powell, Paul Bennett, Anthony Cooney, Richard C. McCarthy, Joseph Bittar +2 more 1998-11-03 $22,084,000
5823299 Shuttle elevators feeding local elevators Gilbert W. Wierschke, Frederick H. Barker, Paul Bennett, Anthony Cooney, Richard C. McCarthy +2 more 1998-10-20 $12,465,000
5819879 Safety brake Michael C. Lang, Dat Nguyen, Richard J. Ericson, Paul Bennett, Joseph A. L. LeDoux +6 more 1998-10-13 $7,198,000
5799755 Linear motor transfer of cab horizontally between elevator and bogey platforms Richard W. Calcasola, Jack M. Thompson, Jr., Vlad Zaharia, Anthony Cooney, Terry M. Robar +4 more 1998-09-01 $12,083,000
5785153 Synchronizing elevator arrival at a level of a building Bruce A. Powell, Joseph Bittar, Frederick H. Barker, Paul Bennett, Anthony Cooney +2 more 1998-07-28 $9,410,000
5773772 Transferring elevator cabs between non-contiguous hoistways Richard C. McCarthy, Joseph Bittar, Frederick H. Barker, Bruce A. Powell, Paul Bennett +2 more 1998-06-30 $20,094,000
5771995 Locking elevator car frame to building during loading/unloading horizontally moveable cab Anthony Cooney, Frederick H. Barker, Bruce A. Powell, Paul Bennett, Richard C. McCarthy +1 more 1998-06-30 $20,094,000
5758748 Synchronized off-shaft loading of elevator cabs Frederick H. Barker, Paul Bennett, Anthony Cooney, Richard C. McCarthy, Joseph Bittar +2 more 1998-06-02 $14,106,000
5752585 Elevator shuttle with auxiliary elevators at terminals Joseph Bittar, Anthony Cooney, Richard C. McCarthy, Frederick H. Barker, Bruce A. Powell +2 more 1998-05-19 $50,287,000
5749441 Extra deck elevator shuttle Joseph Bittar, Paul Bennett, Gilbert W. Wierschke, Bruce A. Powell, Frederick H. Barker +2 more 1998-05-12 $15,813,000
5695024 Car operated safety gate for horizontally transferrable elevator cab Frederick H. Barker, Bruce A. Powell, Gilbert W. Wierschke, Paul Bennett, Anthony Cooney +2 more 1997-12-09 $10,348,000
5663539 Passenger transfer, double deck, multi-elevator shuttle system Bruce A. Powell, Richard C. McCarthy, Joseph Bittar, Frederick H. Barker, Paul Bennett +2 more 1997-09-02 $86,542,000
5660249 Elevator cabs transferred horizontally between double deck elevators Bruce A. Powell, Joseph Bittar, Frederick H. Barker, Paul Bennett, Anthony Cooney +1 more 1997-08-26 $16,768,000
5655625 Emergency elevator cab commandeering shuttle Frederick H. Barker, LucyMary Salmon, Paul Bennett, Anthony Cooney, Richard C. McCarthy +2 more 1997-08-12 $21,449,000
5651426 Synchronous elevator shuttle system Joseph Bittar, Anthony Cooney, Richard C. McCarthy, Frederick H. Barker, Bruce A. Powell +2 more 1997-07-29 $12,363,000
5601156 Maintaining communications and power during transfer of horizontally moveable elevator cab Richard C. McCarthy, Joseph Bittar, Frederick H. Barker, Bruce A. Powell, Paul Bennett +2 more 1997-02-11 $17,478,000