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Pumping device
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Patent number 11,313,108
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Issue date Apr 26, 2022
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Chung-Min Chen
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E03 - WATER SUPPLY SEWERAGE
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Pumping system and method
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Patent number 10,823,204
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Issue date Nov 3, 2020
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Le Bemadjiel Djerassem
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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Air filter for a well
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Patent number 6,684,945
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Issue date Feb 3, 2004
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In-Well Technologies, Inc.
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Kenneth A. Meyers
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E03 - WATER SUPPLY SEWERAGE
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Water well construction
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Patent number 5,099,917
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Issue date Mar 31, 1992
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Kenneth P. Roser
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E03 - WATER SUPPLY SEWERAGE
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3561796
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Patent number 3,561,796
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Issue date Feb 9, 1971
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E03 - WATER SUPPLY SEWERAGE
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3434536
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Patent number 3,434,536
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Issue date Mar 25, 1969
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E03 - WATER SUPPLY SEWERAGE
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2864629
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Patent number 2,864,629
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Issue date Dec 16, 1958
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E03 - WATER SUPPLY SEWERAGE
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1635477
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Patent number 1,635,477
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Issue date Jul 12, 1927
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E03 - WATER SUPPLY SEWERAGE
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1235316
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Patent number 1,235,316
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Issue date Jul 31, 1917
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E03 - WATER SUPPLY SEWERAGE
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1144525
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Patent number 1,144,525
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Issue date Jun 29, 1915
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E03 - WATER SUPPLY SEWERAGE
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1049856
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Patent number 1,049,856
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Issue date Jan 7, 1913
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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1010288
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Patent number 1,010,288
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Issue date Nov 28, 1911
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E03 - WATER SUPPLY SEWERAGE
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897593
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Patent number 897,593
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Issue date Sep 1, 1908
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E03 - WATER SUPPLY SEWERAGE
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492351
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Patent number 492,351
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Issue date Feb 21, 1893
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E03 - WATER SUPPLY SEWERAGE
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423031
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Patent number 423,031
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Issue date Mar 11, 1890
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E03 - WATER SUPPLY SEWERAGE
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416217
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Patent number 416,217
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Issue date Dec 3, 1889
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E03 - WATER SUPPLY SEWERAGE
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215488
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Patent number 215,488
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Issue date May 20, 1879
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E03 - WATER SUPPLY SEWERAGE
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26870
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Patent number 26,870
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Issue date Jan 17, 1860
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E03 - WATER SUPPLY SEWERAGE