B63B 2221/20

Joining substantially rigid elements together by means that allow one or more

Official title: Joining substantially rigid elements together by means that allow one or more degrees of freedom, e.g. hinges, articulations, pivots, universal joints, telescoping joints, elastic expansion joints, not otherwise provided for in this class

B63B2221/20 (Joining substantially rigid elements together by means that allow one or more) appears on 80 US grants and 101 published applications in this corpus.

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80
Published applications
101
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43
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146
Latest grant
18 Aug 2026

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202135
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2024109
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By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

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Granted patents