Hierarchy/Derived subclasses
81 / 300 | -> s | -> 342 | -> 343 | -> 344 | |||
-> 345 | |||||||
-> 346 | |||||||
-> 347 | -> 348 | -> 349 | |||||
-> 350 | -> 351 | ||||||
-> 352 | -> 353 | ||||||
-> 354 | |||||||
-> 355 | -> 356 | -> 357 | |||||
-> 358 | |||||||
-> 359 | -> 360 | ||||||
-> 361 | |||||||
-> 362 | -> 363 | ||||||
-> 364 | -> 365 | ||||||
-> 366 | |||||||
-> 367 | -> 368 | -> 369 | -> 370 | -> 371 | |||
-> 372 | |||||||
-> 373 | |||||||
-> 374 | |||||||
-> 375 | |||||||
-> 376 | |||||||
-> 377 | -> 378 | -> 379 | -> 380 | ||||
-> 381 | -> 382 | ||||||
-> 383 | |||||||
-> 383.5 | |||||||
-> 384 |
uspto searches
Patent Apps in 81/342Granted Patents in 81/342
Use the links above or do an advanced search in ppubs for:
(81/342.ccls. or 81/343.ccls. or 81/344.ccls. or 81/345.ccls. or 81/346.ccls. or 81/347.ccls. or 81/348.ccls. or 81/349.ccls. or 81/350.ccls. or 81/351.ccls. or 81/352.ccls. or 81/353.ccls. or 81/354.ccls. or 81/355.ccls. or 81/356.ccls. or 81/357.ccls. or 81/358.ccls. or 81/359.ccls. or 81/360.ccls. or 81/361.ccls. or 81/362.ccls. or 81/363.ccls. or 81/364.ccls. or 81/365.ccls. or 81/366.ccls. or 81/367.ccls. or 81/368.ccls. or 81/369.ccls. or 81/370.ccls. or 81/371.ccls. or 81/372.ccls. or 81/373.ccls. or 81/374.ccls. or 81/375.ccls. or 81/376.ccls. or 81/377.ccls. or 81/378.ccls. or 81/379.ccls. or 81/380.ccls. or 81/381.ccls. or 81/382.ccls. or 81/383.ccls. or 81/383.5.ccls. or 81/384.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.