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F04D 29/0405

Joining shafts

Official title: {joining shafts, e.g. rigid couplings, quill shafts}

F04D29/0405 (Joining shafts) appears on 16 US grants and 17 published applications in this corpus.

Search patents in F04D

Granted patents: 16
Published applications: 17
Assignees: 12
Inventors: 40
Latest grant: 21 Oct 2025

Filings by year

F04D 29/0405: granted patents and published applications per publication year
Year	Granted patents	Published applications
2012	0	2
2013	0	0
2014	0	0
2015	1	0
2016	0	0
2017	0	0
2018	1	1
2019	0	1
2020	1	2
2021	1	2
2022	1	1
2023	5	5
2024	3	2
2025	3	0
2026	0	1

By publication year. 2026 runs to 8 Oct.

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Most cited

By later US patents