Hierarchy/Derived subclasses
442 / 1 | -> 2 | -> 3 | ||
-> 4 | ||||
-> 5 | ||||
-> 6 | -> 7 | -> 8 | ||
-> 9 | ||||
-> 10 | -> 11 | |||
-> 12 | ||||
-> 13 | -> 14 | |||
-> 15 | ||||
-> 16 | ||||
-> 17 | ||||
-> 18 | ||||
-> 19 | ||||
-> 20 | -> 21 | |||
-> 22 | ||||
-> 23 | ||||
-> 24 | ||||
-> 25 | ||||
-> 26 | ||||
-> 27 | ||||
-> 28 | ||||
-> 29 | ||||
-> 30 | ||||
-> 31 | ||||
-> 32 | ||||
-> 33 | -> 34 | |||
-> 35 | -> 36 | |||
-> 37 | ||||
-> 38 | -> 39 | |||
-> 40 | ||||
-> 41 | ||||
-> 42 | ||||
-> 43 | -> 44 | |||
-> 45 | ||||
-> 46 | -> 47 | |||
-> 48 | ||||
-> 49 | ||||
-> 50 | -> 51 | |||
-> 52 | -> 53 | |||
-> 54 | -> 55 | |||
-> 56 | ||||
-> 57 | ||||
-> 58 |
uspto searches
Patent Apps in 442/1Granted Patents in 442/1
Use the links above or do an advanced search in ppubs for:
(442/1.ccls. or 442/2.ccls. or 442/3.ccls. or 442/4.ccls. or 442/5.ccls. or 442/6.ccls. or 442/7.ccls. or 442/8.ccls. or 442/9.ccls. or 442/10.ccls. or 442/11.ccls. or 442/12.ccls. or 442/13.ccls. or 442/14.ccls. or 442/15.ccls. or 442/16.ccls. or 442/17.ccls. or 442/18.ccls. or 442/19.ccls. or 442/20.ccls. or 442/21.ccls. or 442/22.ccls. or 442/23.ccls. or 442/24.ccls. or 442/25.ccls. or 442/26.ccls. or 442/27.ccls. or 442/28.ccls. or 442/29.ccls. or 442/30.ccls. or 442/31.ccls. or 442/32.ccls. or 442/33.ccls. or 442/34.ccls. or 442/35.ccls. or 442/36.ccls. or 442/37.ccls. or 442/38.ccls. or 442/39.ccls. or 442/40.ccls. or 442/41.ccls. or 442/42.ccls. or 442/43.ccls. or 442/44.ccls. or 442/45.ccls. or 442/46.ccls. or 442/47.ccls. or 442/48.ccls. or 442/49.ccls. or 442/50.ccls. or 442/51.ccls. or 442/52.ccls. or 442/53.ccls. or 442/54.ccls. or 442/55.ccls. or 442/56.ccls. or 442/57.ccls. or 442/58.ccls.)
At about 35 search terms the uspto will give you this error "Too many search terms" The 35th term is bold.
This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.