Inventor · Little Rock, AR, US

Frances G. Lopata

7Patents
6h-index
12Co-inventors
56Inventor score

Filing activity: Aug 12, 1982 → Aug 24, 2000

Most-cited inventions

PatentTitleAreaCited byStatus
US6272993A Electric primer Mechanical Engineering; Lighting; Heating 219 Expired
US4674409A Non-toxic, non-corrosive rimfire cartridge Mechanical Engineering; Lighting; Heating 22 Expired
US5684268A Lead-free primer mix Chemistry; Metallurgy 17 Expired
US4465883A Bullet lubricant and method of coating bullets with said lubricant to reduce the leading effect thereof on the bores of firearms Chemistry; Metallurgy 14 Expired
US4689185A Priming method for rimfire cartridge Mechanical Engineering; Lighting; Heating 14 Expired
US6131515A Electric primer Mechanical Engineering; Lighting; Heating 8 Expired
US5646367A Conductive primer mix Chemistry; Metallurgy 6 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.