What counted as success varies from century to century. A successful scientist of the 18th century was someone who discovered a comet, or perhaps computed the orbit of a comet. A comet was world class event. Today comets are found by people around the world – often as many as ten a year. Home based personal computers can produce very nice comet orbits. We cannot omit from the list a 19th century woman such as Maria Mitchell who discovered comets just because she would not make the list in the late twentieth century. Similarly, at one time, someone who presented a solution to a particular algebraic equation was highly regarded by the entire community. Today, a solution of this type finds little merit outside a tiny set of mathematicians. So we have to include Maria Agnesi. So when we search out the women of technology and science we must avoid, where possible, using 20th century criteria to define success.
However, there is something that reaches outside our twentieth century glasses. Successful science works – repeatedly. The test of science is whether the work can be tested, repeated and used by others. The common attributes of a scientist are luck, education, ability and sweat. Both women and men share these attributes. There is no gender lurking in this definition. None.