Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Main Group
F03G 3/00

Other motors, e.g. gravity or inertia motors

Introduced: September 1968

Of 7 combined children, 4 exist in both systems.

3 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

Navigate with arrow keys, Enter to open

  • F03G 3/02 using wheels with circumferentially-arranged compartments co-operating with solid falling bodies (F03G3/04 takes precedence) IPC+CPC Available in IPC and CPC
  • F03G 3/04 driven by sand or like fluent solid material IPC+CPC Available in IPC and CPC
  • F03G 3/06 using pendulums IPC+CPC Available in IPC and CPC
  • F03G 3/096 CPC only CPC only
  • F03G 3/097 CPC only CPC only

Top Applicants

Top Applicants (IPC)

Class F03,2013–2023, worldwide · Source: EPO PATSTAT

  1. VESTAS DK 3,539
  2. WOBBEN PROPERTIES DE 2,922
  3. SIEMENS GAMESA RENEWABLE ENERGY DK 2,747
  4. GE (GENERAL ELECTRIC COMPANY) US 2,356
  5. BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT COMPANY 1,228
  6. SIEMENS DE 886
  7. SGCC(STATE GRID CORPORATION OF CHINA) 831
  8. HUANENG CLEAN ENERGY RESEARCH INSTITUTE 785
  9. MING YANG SMART ENERGY GROUP. 652
  10. LM WIND POWER DK 600

Top Applicants (CPC)

Class F03,2013–2023, worldwide · Source: EPO PATSTAT

  1. VESTAS DK 3,718
  2. WOBBEN PROPERTIES DE 3,602
  3. SIEMENS GAMESA RENEWABLE ENERGY DK 3,016
  4. GE (GENERAL ELECTRIC COMPANY) US 2,594
  5. SIEMENS DE 1,082
  6. BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT COMPANY 709
  7. LM WIND POWER DK 671
  8. WOBBEN PROPERTIES 660
  9. SENVION DE 555
  10. BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT COMPANY CN 536