Search notes:

CIM Class Win32_Thread

Show properties of win32_thread: 
(get-cimClass -className win32_thread).CimClassProperties.name

Class hierarchy

win32_thread inherits from cim_thread: 
(get-cimClass -className win32_thread).cimSuperClass.cimClassName
The entire hierarchy can be shown with cim-classHierarchy: 
PS C:\> cim-classHierarchy (get-cimclass win32_thread)

ROOT/Cimv2 CIM_ManagedSystemElement
ROOT/Cimv2 CIM_LogicalElement
ROOT/Cimv2 CIM_Thread
ROOT/Cimv2 Win32_Thread

See also

win32_process

Index