A61F 2002/3408

Shells having at least two sets of different apertures

Official title: {Shells having at least two sets of different apertures, e.g. one set located in the equatorial zone and another set located in the polar zone}

A61F2002/3408 (Shells having at least two sets of different apertures) appears on 13 US grants and 18 published applications in this corpus.

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Granted patents
13
Published applications
18
Assignees
17
Inventors
38
Latest grant
11 Aug 2026

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A61F 2002/3408: granted patents and published applications per publication year
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198810
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201813
201931
202011
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202413
202502
202611

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

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