Inventor · Johnston, IA, US

Howard V. Block

4Patents
3h-index
4Co-inventors
39Inventor score

Filing activity: Jun 21, 1993 → Oct 2, 2000

Most-cited inventions

PatentTitleAreaCited byStatus
US5426415A Breath analyzer for use in automobile ignition locking systems Physics 132 Expired
USD446982S Reversible mat General 31 Expired
US6446400B1 Anti-vegetation tile system Fixed Constructions 10 Expired
US6582635B1 Method of making a cold cured composite molded article Performing Operations; Transporting 0 Expired

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