Inventor
CALKINS WILLIS
US4 patents
⚠️ This page may combine multiple inventors who share the name “CALKINS WILLIS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GOOGLE INC
3 patentsUS11121560B2Sep 14, 2021
Hot-pluggable dual battery with pass through charging
GOOGLE INC2 citations59
US9472975B2Oct 18, 2016
Charging mechanism with ground contact and non-contact coupling
GOOGLE INC0 citations47
US9368998B2Jun 14, 2016
Charging mechanism with ground contact and non-contact coupling
GOOGLE INC0 citations47