Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
RA

Robert Astle

ESEcowater Systems: 3 patents #1 of 15Top 7%
3M: 2 patents #222 of 1,276Top 20%
EPElectrolux Home Products: 1 patents #37 of 111Top 35%
KTKx Technologies: 1 patents #1 of 7Top 15%
TCTe Connectivity Co.: 1 patents #43 of 145Top 30%
Middlefield, CT: #1 of 6 inventorsTop 20%
Connecticut: #111 of 4,045 inventorsTop 3%
Overall (2021): #15,440 of 548,734Top 3%
7 Patents 2021

Issued Patents 2021

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
11209413 Method for determining hardness concentration using a monovalent ion selective electrode Malcolm Kahn, Jeffrey Zimmerman 2021-12-28
11185804 Latch reset filter unit Laurence W. Bassett, Andrew M. Candelora 2021-11-30
11052333 Filter interconnect using a correlated magnet torque design William Li, Bruno Chima 2021-07-06
11031710 Electrical connector and wire harness assembly with compression contacts Chong Hun Yi, Brian Keith Weaver, William James Moyer, II, Ronald Skovira, Gary Altemose +10 more 2021-06-08
11016074 Apparatus for measuring water hardness using ion selective electrode Malcolm Kahn, Jeffrey Zimmerman, Ravi Meruva 2021-05-25
10994035 Disinfecting system with performance monitoring Rajeev Dhiman, Michael E. Griffin, Michael N. Cormier 2021-05-04
10974975 Electrolytic zinc dosing device and method for reducing scale George Dimotsis 2021-04-13