Inventor
RAMASWAMY NAGAPPAN
US12 patents
⚠️ This page may combine multiple inventors who share the name “RAMASWAMY NAGAPPAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GM GLOBAL TECH OPERATIONS LLC
6 patentsUS11799088B2Oct 24, 2023
Fuel cell cathode and fuel cell system including a polymeric additive
GM GLOBAL TECH OPERATIONS LLC0 citations60
US11302926B2Apr 12, 2022
Fuel-cell catalyst ink additives to inhibit ionomer permeation
GM GLOBAL TECH OPERATIONS LLC0 citations60
US12525619B2Jan 13, 2026
Fuel cell electrode and fuel cell system including zirconium-based dopants
GM GLOBAL TECH OPERATIONS LLC0 citations52
US12580204B2Mar 17, 2026
Fuel cell electrode and fuel cell system including a functionalized carbon support
GM GLOBAL TECH OPERATIONS LLC0 citations51
US10158128B2Dec 18, 2018
Fuel cell stack break-in procedures and break-in conditioning systems
GM GLOBAL TECH OPERATIONS LLC0 citations50
US10784527B2Sep 22, 2020
System and method for MEA conditioning in a fuel cell
GM GLOBAL TECH OPERATIONS LLC0 citations40
NISSAN NORTH AMERICA INC
5 patentsUS9866056B2Jan 9, 2018
Lithium sulfur battery pulse charging method and pulse waveform
NISSAN NORTH AMERICA INC7 citations82
US9331364B2May 3, 2016
Lithium sulfur battery pulse charging method and pulse waveform
NISSAN NORTH AMERICA INC7 citations82
US9627684B2Apr 18, 2017
High capacity, dimensionally stable anode from low-bulk density amorphous silicon for lithium-ion batteries
NISSAN NORTH AMERICA INC2 citations71
US9590252B2Mar 7, 2017
Lithium sulfur battery having cathode with nucleation agents
NISSAN NORTH AMERICA INC0 citations50
US9379417B2Jun 28, 2016
Lithium sulfur battery cathode electrode surface treatment during discharge
NISSAN NORTH AMERICA INC0 citations50