RJ

Robert F. Birkenstock, JR.

TA Taco: 3 patents #5 of 36Top 15%
📍 Apponaug, RI: #30 of 60 inventorsTop 50%
🗺 Rhode Island: #1,858 of 6,211 inventorsTop 30%
Overall (All Time): #1,332,442 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12313075 High efficiency hydronic circulator with sensors Steve Thompson, David Sweet, Vladislav Milchev Stakev, Douglas Bird 2025-05-27
9866093 Brushless DC motor with permanent magnet rotor Di Wu, Vladislav Milchev Stakev 2018-01-09
9401631 Brushless DC motor with permanent magnet rotor Di Wu, Vladislav Milchev Stakev 2016-07-26