F04B 47/00

Pumps or pumping installations specially adapted for raising fluids from great depths

Official title: Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps (by using positive or negative pressurised fluid medium acting directly on the liquid to be pumped F04F1/00)

F04B47/00 (Pumps or pumping installations specially adapted for raising fluids from great depths) appears on 2,089 US grants and 1,828 published applications in this corpus.

Search patents in F04B
Granted patents
2,089
Published applications
1,828
Assignees
760
Inventors
2,914
Latest grant
6 Oct 2026

Filings by year

F04B 47/00: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976200
1977160
1978180
1979110
1980190
1981220
1982220
1983380
1984470
1985520
1986270
1987390
1988280
1989200
1990120
1991220
1992130
1993210
1994260
1995190
199690
1997170
1998230
1999190
2000190
2001245
20022117
20032114
20041321
20051634
20062142
20071323
20082338
20092333
20102246
20112561
20123656
20135562
20146073
20154995
20164497
201758151
2018113138
2019121121
2020132105
2021110135
2022125120
2023124112
202499116
202511171
20265142

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

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