For Immediate Release Anne Buckley
ASME International
Phone:212-705-8157

PATENTS HELD BY WOMEN INVENTORS

Having greatly contributed to the industrial development of the nation, women hold patents in a wide range of fields. Some of their inventions revolutionized entire industries, others created them. Listed below are some of the patents held by women inventors in the United States.

Patentee Date Issued Patent No. Description
Mary Kies 05-05-1809 no number straw weaving with silk or thread
Martha J. Coston 04-05-1859 23,536 pyrotechnic night signals
06-13-1871 115,935 improvement-pyrotechnic night signals
Clarissa Britain 08-11-1863 39,460 improvement in ambulances
10-05-1863 40,157 improvement in boilers
Rebecca Sherwood 11-10-1863 40,577 reducing hemp, flax, etc. to fibrous substances
12-13-1863 45,440 improvement in reducing straw and other fibrous substances for the manufacture of paper pulp
Mary Jane Montgomery 01-05-1864 41,167 improved war-vessel
05-31-1864 42,958 improvement in locomotive wheels
05-08-1866 54,580 improved apparatus for punching corrugated metals
Sarah P. Mather 07-05-1864 43,465 submarine telescope
Temperance P. Edson 07-04-1865 48,539 self-inflator raising sunken vessels
Margaret Knight 11-15-1870 109,224 improved paper-feeding machine
07-11-1871 116,842 improved paper-bag machine
10-28-1879 220,925 improved paper-bag machine
09-16-1890 436,358 sole cutting machine
12-30-1902 720,818 compound rotary engine
01-06-1904 717,869 rotary engine
(w/J.M. Benjamin) 11-03-1904 743,293 automatic tool for boring or planing convex or cylindrical surfaces
01-23-1912 1,105,761 resilient wheel
Augusta M. Rodgers 04-04-1871 113,348 car heater
05-09-1871 114,605 improvement in conveyors of smoke and cinders for locomotives
10-10-1871 119,790 improvement in conveyors
Maria L. Ghirardini 07-29-1873 141,217 rails for street railways
Emily E. Tassey 07-25-1876 180,286 improvement in apparatus for raising sunken vessels
12-05-1876 183,998 improvement in dredging machines
12-05-1876 184,996 improvement in siphon propeller-pump
12-05-1876 194,997 improvement in propulsion of vessels
Sarah E. Saul 09-19-1876 182,485 improvement in metallic casings for lead pipes
Caroline S. Brooks 02-06-1877 187,095 improvement in methods of producing lubricated molds in plaster
Mary E. Walton 11-18-1879 221,880 locomotive and other chimneys
02-08-1881 327,422 elevated railway
Maria E. Beasley 04-06-1880 226,264 life-raft
08-02-1881 245,050 barrel-hoop driving machine
Evelyn F. French & Milton Clifford 11-09-1880 234,265 sound-deadening attachment for railway cars
Anna Connelly 08-23-1887 368,816 fire escape
Harriet W.R. Strong 12-06-1887 374,378 dam & reservoir construction
11-06-1894 528,823 method of & means for impounding debris & storing water
Annie H. Chilton 07-28-1891 456,613 horse detacher & brake
02-27-1894 515,651 combined horse detacher & brake
Letitia Geer 04-11-1899 622,848 medical syringes
Mary Anderson 11-10-1903 743,801 window cleaning device
Lizzie Dickelman 05-15-1917 1,219,267 grain storehouse construction
05-05-1917 1,226,477 metal building plate
01-13-1920 1,328,132 ventilated storage warehouse
El Dorado Jones 06-02-1917 1,229,471 exhaust attachment for gas engines
Ida R. Forbes 12-25-1917 1,251,210 electric hot water heater
Olive Dennis 11-27-1928 1,693,108 ventilator
Katharine B. Blodgett 04-12-1935 2,108,641 surface treatment of materials
03-13-1938 2,220,660 film structure & preparation method
Henrietta Bradbury 12-01-1945 3,390,688 torpedo discharge means
Evelyn Berezin 11-17-1959 2,913,176 data processing system
Phyllis Hersh 02-21-1961 2,972,736 bi-directional magnetic tape
Jean H. Clark 03-06-1962 3,024,421 linear discriminator circuit
Erna S. Hoover 11-23-1971 3,623,007 feedback control monitor for stored
program data processing system
Giuliana C. Tesora 03-20-1973 3,721,523 modification of reactive hydrogen containing polymer
Barbara S. Askins 07-18-1978 4,101,780 method of obtaining intensified image from developed photographic films and plates

Sources: U.S. Patent and Trademark Office; Feminine Ingenuity: How Women Inventors Changed America, Anne L. Macdonald, Ballantine Books, NY, Copywright 1992

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