CPC Subgroup Additional Only
Y10T 137/7929 Spring coaxial with valve
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
9 direct subcodes
Child Classifications
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- Y10T 137/793 Broken valve parts retainer
- Y10T 137/7931 Spring in inlet
- Y10T 137/7932 Valve stem extends through fixed spring abutment
- Y10T 137/7934 Spring abuts removable valve stem guide
- Y10T 137/7935 Head slides on guide-rod concentric with spring
- Y10T 137/7936 Spring guides valve head
- Y10T 137/7937 Cage-type guide for stemless valves
- Y10T 137/7938 Guide means integral and coplanar with valve disk
- Y10T 137/7939 Head between spring and guide
Top Applicants
Top 10 applicants by patent filingsfor class Y10, 2013–2023, worldwide · Source: EPO PATSTAT
- BOEING COMPANY US 2,373
- FORD GLOBAL TECHNOLOGIES US 2,244
- HYUNDAI MOTOR COMPANY KR 2,186
- TOYOTA MOTOR CORPORATION JP 1,997
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,837
- GE (GENERAL ELECTRIC COMPANY) US 1,794
- SAMSUNG ELECTRONICS COMPANY KR 1,705
- CORNING US 1,569
- TOYOTA MOTOR CORPORATION 1,403
- LG CHEM KR 1,364