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DIFF Subgroup Additional Only
Y10T 137/7934

Spring abuts removable valve stem guide

Full Title

Fluid handling > Line condition change responsive valves > Direct response valves [i.e., check valve type] > Reciprocating valves > Spring biased > Spring coaxial with valve > Spring abuts removable valve stem guide

Top Applicants

Top Applicants (CPC)

Class Y10,2013–2023, worldwide · Source: EPO PATSTAT

  1. BOEING COMPANY US 2,373
  2. FORD GLOBAL TECHNOLOGIES US 2,244
  3. HYUNDAI MOTOR COMPANY KR 2,186
  4. TOYOTA MOTOR CORPORATION JP 1,997
  5. 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,837
  6. GE (GENERAL ELECTRIC COMPANY) US 1,794
  7. SAMSUNG ELECTRONICS COMPANY KR 1,705
  8. CORNING US 1,569
  9. TOYOTA MOTOR CORPORATION 1,403
  10. LG CHEM KR 1,364