Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
H02K 19/04

for single-phase current

Introduced: September 1968

Last revised: January 2006

Full Title

Synchronous motors or generators > Synchronous motors > for single-phase current

Classification Context

Section:
ELECTRICITY
Class:
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
Subclass:
DYNAMO-ELECTRIC MACHINES

2 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • H02K 19/06 Motors having windings on the stator and a variable-reluctance soft-iron rotor without windings, e.g. inductor motors
  • H02K 19/08 Motors having windings on the stator and a smooth rotor without windings of material with large hysteresis, e.g. hysteresis motors

Top Applicants

Top 10 applicants by patent filingsfor class H02, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 54,496
  2. MITSUBISHI ELECTRIC CORPORATION JP 10,495
  3. TOYOTA MOTOR CORPORATION 9,464
  4. GUANGDONG POWER GRID CORPORATION 9,339
  5. ROBERT BOSCH DE 8,226
  6. SIEMENS DE 8,218
  7. DENSO CORPORATION 7,063
  8. MITSUBISHI ELECTRIC CORPORATION 6,619
  9. SAMSUNG ELECTRONICS COMPANY KR 5,826
  10. GREE ELECTRIC APPLIANCES 5,094