Inventor · New Baltimore, MI, US

Patrick H. Hool

8Patents
5h-index
15Co-inventors
56Inventor score

Filing activity: Jan 21, 1988 → Jul 28, 2004

Most-cited inventions

PatentTitleAreaCited byStatus
US6877717B2 Control valve for a vehicular brake system Electricity 32 Expired
US6634723B1 Electro-hydraulic control unit for an electronic brake control system Emerging Cross-Sectional Technologies 23 Expired
US6416141B1 Methods for improving braking performance in electronically-controlled hydraulic brake systems Emerging Cross-Sectional Technologies 13 Expired
US5944068A Apparatus and method for prefilling secondary hydraulic circuits of a vehicular braking system Performing Operations; Transporting 11 Expired
US7093911B2 Floating piston for augmenting pressurized fluid flow during vehicle braking operations Performing Operations; Transporting 9 Expired
US4893473A Reservoir-formed shoulder stop for makeup fluid valve actuation in pull-type master cylinder Emerging Cross-Sectional Technologies 5 Expired
US6217132A Hydraulic control unit having a master cylinder and anti-lock braking valves integrally mounted therein Emerging Cross-Sectional Technologies 2 Expired
US7104613B2 Pump with reciprocating high pressure seal and valve for vehicle braking systems Performing Operations; Transporting 0 Expired

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