F28D 7/028

The conduits of at least one medium being helically coiled, the coils

Official title: {the conduits of at least one medium being helically coiled, the coils having a conical configuration}

F28D7/028 (The conduits of at least one medium being helically coiled, the coils) appears on 30 US grants and 28 published applications in this corpus.

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Granted patents
30
Published applications
28
Assignees
28
Inventors
64
Latest grant
2 Dec 2025

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F28D 7/028: granted patents and published applications per publication year
YearGranted patentsPublished applications
198310
198400
198520
198610
198710
198800
198900
199000
199120
199200
199300
199400
199500
199600
199700
199820
199900
200000
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200201
200300
200411
200511
200614
200720
200801
200911
201011
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201202
201301
201403
201521
201601
201722
201831
201920
202000
202102
202202
202321
202411
202520

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