CPC Subgroup Additional Only
Y10T 137/7837 Direct response valves [i.e., check valve type]
Full Title
Fluid handling > Line condition change responsive valves > Direct response valves [i.e., check valve type]
14 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- Y10T 137/7838 Plural
- Y10T 137/7847 With leak passage
- Y10T 137/785 With retarder or dashpot
- Y10T 137/7854 In couplings for coaxial conduits, e.g., drill pipe check valves
- Y10T 137/7858 With means for selecting area of valve or seat
- Y10T 137/7859 Single head, plural ports in parallel
- Y10T 137/7866 Plural seating
- Y10T 137/7869 Biased open
- Y10T 137/7876 With external means for opposing bias
- Y10T 137/7878 With bias adjustment indicator
- Y10T 137/7879 Resilient material valve
- Y10T 137/7897 Vacuum relief type
- Y10T 137/7898 Pivoted valves
- Y10T 137/7904 Reciprocating valves
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