Hierarchy/Derived subclasses
177 / 201 | -> 202 | |||
-> 203 | -> 204 | |||
-> 205 | ||||
-> 206 | ||||
-> 207 | ||||
-> 208 | -> 209 | |||
-> 210r | -> 211 | |||
-> 210c | ||||
-> 210em | ||||
-> 210fp | ||||
-> 212 | -> 213 | -> 214 | ||
-> 215 | ||||
-> 216 | -> 217 | -> 218 | ||
-> 219 | ||||
-> 220 | -> 221 | |||
-> 222 | -> 223 | |||
-> 224 | ||||
-> 225 | -> 226 | -> 227 | ||
-> 228 | ||||
-> 229 | ||||
-> 230 | ||||
-> 231 | ||||
-> 232 | -> 233 | |||
-> 234 | ||||
-> 235 | -> 236 | |||
-> 237 |
uspto searches
Patent Apps in 177/201Granted Patents in 177/201
Use the links above or do an advanced search in ppubs for:
(177/201.ccls. or 177/202.ccls. or 177/203.ccls. or 177/204.ccls. or 177/205.ccls. or 177/206.ccls. or 177/207.ccls. or 177/208.ccls. or 177/209.ccls. or 177/210r.ccls. or 177/211.ccls. or 177/210c.ccls. or 177/210em.ccls. or 177/210fp.ccls. or 177/212.ccls. or 177/213.ccls. or 177/214.ccls. or 177/215.ccls. or 177/216.ccls. or 177/217.ccls. or 177/218.ccls. or 177/219.ccls. or 177/220.ccls. or 177/221.ccls. or 177/222.ccls. or 177/223.ccls. or 177/224.ccls. or 177/225.ccls. or 177/226.ccls. or 177/227.ccls. or 177/228.ccls. or 177/229.ccls. or 177/230.ccls. or 177/231.ccls. or 177/232.ccls. or 177/233.ccls. or 177/234.ccls. or 177/235.ccls. or 177/236.ccls. or 177/237.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.