Inventor · San Francisco, CA, US

Fredrick L. Drain

1Patents
1h-index
2Co-inventors
22Inventor score

Filing activity: Sep 10, 1986 → Sep 10, 1986

Most-cited inventions

PatentTitleAreaCited byStatus
US4794461A Method and apparatus for block coding vertical mode codes for enhanced compression of image data Electricity 5 Expired

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