A61F 2002/30233

Stepped cylinders, i.e. having discrete diameter changes

Official title: {Stepped cylinders, i.e. having discrete diameter changes}

A61F2002/30233 (Stepped cylinders, i.e. having discrete diameter changes) appears on 255 US grants and 285 published applications in this corpus.

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By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.