Inventor · Hadley, MA, US

David Hoffman

9Patents
6h-index
15Co-inventors
56Inventor score

Filing activity: Oct 23, 1995 → Sep 30, 2009

Most-cited inventions

PatentTitleAreaCited byStatus
US5953868A Loading dock seal assembly Performing Operations; Transporting 48 Expired
US5777562A Centering device and method for centering Physics 25 Expired
US7568764B2 Reclining rear seat for vehicle having four-bar link Performing Operations; Transporting 25 Active
US6253713A Pet restraint system Performing Operations; Transporting 23 Expired
US6681969B1 Container assembly Emerging Cross-Sectional Technologies 7 Expired
US7695048B2 Seal for an open door of a vehicle Performing Operations; Transporting 6 Active
US7926190B1 Dual interchangeable type bow sight Mechanical Engineering; Lighting; Heating 2 Active
US5683133A Theft prevention feature using power driver seat Performing Operations; Transporting 2 Expired
US8771257B2 Drug delivery sheath Human Necessities 1 Active

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