Y10T TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Description
Y10T serves as a mapping and transitional classification that bridges the former United States Patent Classification (USPC) system with the current CPC framework. It captures technical subject matter that was previously organized under USPC but does not map directly to standard IPC/CPC hierarchies, functioning as a cross-reference archive for historical patent documents and legacy classification data. This subclass is primarily used for indexing and retrieval purposes rather than for newly issued patents, enabling continuity in patent searching and prior art analysis across the transition from USPC to CPC systems. Y10T subdivisions correspond to specific USPC technical digest categories and art collections (XRACs), preserving the searchability of older patent literature classified under the discontinued American system.
22 direct subcodes
Child Classifications
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- Y10T 117/00 Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
- Y10T 137/00 Fluid handling
- Y10T 152/00 Resilient tires and wheels
- Y10T 156/00 Adhesive bonding and miscellaneous chemical manufacture
- Y10T 225/00 Severing by tearing or breaking
- Y10T 24/00 Buckles, buttons, clasps, etc.
- Y10T 279/00 Chucks or sockets
- Y10T 29/00 Metal working
- Y10T 292/00 Closure fasteners
- Y10T 403/00 Joints and connections
- Y10T 407/00 Cutters, for shaping
- Y10T 408/00 Cutting by use of rotating axially moving tool
- Y10T 409/00 Gear cutting, milling, or planing
- Y10T 428/00 Stock material or miscellaneous articles
- Y10T 436/00 Chemistry: analytical and immunological testing
- Y10T 442/00 Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T 464/00 Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts
- Y10T 483/00 Tool changing
- Y10T 70/00 Locks
- Y10T 74/00 Machine element or mechanism