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Additive injection valve
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Patent number 4,281,935
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Issue date Aug 4, 1981
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E. I. Du Pont de Nemours and Company
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Gregory D. Cramer
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2026163
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Patent number 2,026,163
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Issue date Dec 31, 1935
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1817917
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Patent number 1,817,917
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Issue date Aug 11, 1931
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1758645
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Patent number 1,758,645
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Issue date May 13, 1930
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1713316
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Patent number 1,713,316
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Issue date May 14, 1929
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1701217
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Patent number 1,701,217
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Issue date Feb 5, 1929
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1697972
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Patent number 1,697,972
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Issue date Jan 8, 1929
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B60 - VEHICLES IN GENERAL
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1694209
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Patent number 1,694,209
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Issue date Dec 4, 1928
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1683902
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Patent number 1,683,902
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Issue date Sep 11, 1928
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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1555265
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Patent number 1,555,265
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Issue date Sep 29, 1925
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1489990
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Patent number 1,489,990
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Issue date Apr 8, 1924
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1480126
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Patent number 1,480,126
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Issue date Jan 8, 1924
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1427987
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Patent number 1,427,987
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Issue date Sep 5, 1922
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1361790
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Patent number 1,361,790
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Issue date Dec 7, 1920
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B24 - GRINDING POLISHING
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1252501
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Patent number 1,252,501
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Issue date Jan 8, 1918
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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1169309
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Patent number 1,169,309
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Issue date Jan 25, 1916
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1027819
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Patent number 1,027,819
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Issue date May 28, 1912
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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994955
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Patent number 994,955
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Issue date Jun 13, 1911
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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983084
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Patent number 983,084
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Issue date Jan 31, 1911
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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884942
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Patent number 884,942
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Issue date Apr 14, 1908
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B24 - GRINDING POLISHING
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862176
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Patent number 862,176
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Issue date Aug 6, 1907
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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748339
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Patent number 748,339
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Issue date Dec 29, 1903
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B24 - GRINDING POLISHING
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644422
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Patent number 644,422
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Issue date Feb 27, 1900
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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613447
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Patent number 613,447
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Issue date Nov 1, 1898
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F22 - STEAM GENERATION
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483635
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Patent number 483,635
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Issue date Oct 4, 1892
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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469853
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Patent number 469,853
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Issue date Mar 1, 1892
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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423288
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Patent number 423,288
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Issue date Mar 11, 1890
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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417136
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Patent number 417,136
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Issue date Dec 10, 1889
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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320380
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Patent number 320,380
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Issue date Jun 16, 1885
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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292353
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Patent number 292,353
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Issue date Jan 22, 1884
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...