Inventor · Masontown, PA, US

Mark Williams

19Patents
13h-index
19Co-inventors
75Inventor score

Filing activity: Jun 15, 1988 → Jun 20, 2013

Most-cited inventions

PatentTitleAreaCited byStatus
US6401402B1 Pre-folded flashing systems and method Fixed Constructions 78 Expired
US6401401B1 Multi-component flashing systems Fixed Constructions 66 Expired
US5899026A Multi-component elastomeric materials for a building flashing system Fixed Constructions 49 Expired
US6868643B1 Integrated system for controlling water intrusion and air movement through exterior wall construction Fixed Constructions 46 Expired
US5279091A Building enclosure assemblies Fixed Constructions 43 Expired
US4897976A Building enclosure assemblies Fixed Constructions 39 Expired
USD447780S Exercise treadmill General 33 Expired
US5123641A Apparatus for underwater exercise Human Necessities 28 Expired
US5440638A Stereo enhancement system Electricity 25 Expired
US6500078B1 Training device for baseball pitchers Human Necessities 22 Expired
US6945883B1 Baseball pitcher's training device Human Necessities 18 Expired
USD725792S1 Adjustable roof hatch safety rail General 16 Active
US5974153A Method and system for sound expansion Electricity 14 Expired
US4833849A Building enclosure assemblies Fixed Constructions 13 Expired
US5774556A Stereo enhancement system including sound localization filters Electricity 12 Expired
US6941713B2 Multi-unit termination accessory flashing Fixed Constructions 10 Expired
US5098085A Exercise apparatus for underwater use Human Necessities 10 Expired
US5838800A Apparatus for enhancing stereo effect with central sound image maintenance circuit Electricity 8 Expired
US5217420A Exercise apparatus for underwater use Human Necessities 7 Expired

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