Robert A. Barth — 1 Patent in 2021

OEOtis Elevator: 1 patents #88 of 253Top 35%

South Windsor, CT: #37 of 70 inventorsTop 55%

Connecticut: #1,399 of 4,045 inventorsTop 35%

Overall (2021): #287,155 of 548,734Top 55%

1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
10927915	Spring useful for elevator safety device	Enrico Manes, Xiaodong Luo, Shihemn Chen, Daryl J. Marvin, Michael A. Klecka +1 more	2021-02-23