Inventor · Maynard, MA, US

John C. Ostrowski

7Patents
5h-index
14Co-inventors
56Inventor score

Filing activity: Dec 30, 1977 → Mar 14, 1996

Most-cited inventions

PatentTitleAreaCited byStatus
US5315344A Microscope camera Physics 28 Expired
US5969760A Electronic still camera having mechanically adjustable CCD to effect focus Electricity 26 Expired
US4319820A Auto/manual focus control inhibit/override Physics 12 Expired
US4156567A Ranging and lens focusing module for foldable cameras Physics 10 Expired
US4149792A Misfocus prevention means for cameras having unidirectional automatic focusing Physics 8 Expired
USD257849S Folding photographic camera or similar article General 3 Expired
US4299461A Exposure and flash fire control system Physics 2 Expired

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