{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Otis Elevator", "item": "https://www.patentleaderboard.com/company/otis-elevator"}, {"@type": "ListItem", "position": 3, "name": "Loi Cheng", "item": "https://www.patentleaderboard.com/inventor/fl:lo_ln:cheng-14"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
LC

Loi Cheng — 7 Patents

OEOtis Elevator: 5 patents #308 of 1,840Top 20%
RTX (Raytheon): 2 patents #5,352 of 15,912Top 35%
South Windsor, CT: #104 of 420 inventorsTop 25%
Connecticut: #6,462 of 34,797 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Loi Cheng has been granted 7 US patents while listed as an inventor at Otis Elevator. The first was granted in 2017 and the most recent in May 2022. Loi Cheng ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Loi Cheng in South Windsor, CT, US.

Patents per Year

Patents granted per year, 2017 to 2022Bar chart with a peak of 2 patents in 2019.peak 22017: 1 patents20172018: 1 patents20182019: 2 patents20192021: 1 patents20212022: 2 patents2022

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11332344 Elevator car frame assembly Richard J. Ericson, Meghan Mastriano, Bruce P. Swaybill 2022-05-17
11214464 Elevator seismic performance apparatus Richard J. Ericson, Bruce P. Swaybill, Meghan Mastriano 2022-01-04
10899580 Elevator cab suspension assembly for a double deck elevator Walter Thomas Schmidt, Enrico Manes, Shihemn Chen, Zaffir A. Chaudhry, Xiaodong Luo +4 more 2021-01-26
10502089 Gas turbine engine variable stator vane Tracy A. Propheter-Hinckley 2019-12-10 $10,144,000
10329122 H frame for a double deck elevator Walter Thomas Schmidt, Enrico Manes, Bruce P. Swaybill, Zaffir A. Chaudhry, Luke A. Mishler +4 more 2019-06-25
10036282 Vane support systems Raymond Surace 2018-07-31 $11,836,000
9764925 Elevator system including a car stop for maintaining overhead clearance 2017-09-19