Inventor · Grand Rapids, MI, US

David A. Shipman

27Patents
19h-index
55Co-inventors
80Inventor score

Filing activity: Jun 6, 1991 → Apr 17, 2002

Most-cited inventions

PatentTitleAreaCited byStatus
US5230552A Worksurface utilities module Human Necessities 124 Expired
US5746035A Partition system Emerging Cross-Sectional Technologies 65 Expired
US5740650A Partition system Emerging Cross-Sectional Technologies 54 Expired
US5950386A Partition construction having frame and misaligned covers Fixed Constructions 53 Expired
US5809708A Integrated prefabricated furniture system for fitting-out open plan building space Mechanical Engineering; Lighting; Heating 50 Expired
US5486042A Furniture arrangement Human Necessities 48 Expired
US6067762A Integrated furniture system Mechanical Engineering; Lighting; Heating 48 Expired
US6073399A Post and beam supported slatwall Fixed Constructions 44 Expired
US6530181B1 Partition system including floor channel Fixed Constructions 43 Expired
US6158179A Overhead structures for wall system Fixed Constructions 42 Expired
US6928785B2 Method of connecting partition panels Emerging Cross-Sectional Technologies 42 Expired
US5784843A Integrated prefabricated furniture system for fitting-out open plan building space Mechanical Engineering; Lighting; Heating 38 Expired
US6250020A Prefabricated furniture system Fixed Constructions 38 Expired
US6134852A Partition frame construction having wireways and off-module connection Emerging Cross-Sectional Technologies 31 Expired
US6276102A Integrated prefabricated furniture system for fitting-out open plan building space Mechanical Engineering; Lighting; Heating 29 Expired
USD407501S Front of a segmented partition panel General 26 Expired
US6134845A Partitions with connecting structure Emerging Cross-Sectional Technologies 26 Expired
US6167676A Method of connecting partitions Emerging Cross-Sectional Technologies 22 Expired
US6216398A Wall system Fixed Constructions 21 Expired
US5899036A Partition system Emerging Cross-Sectional Technologies 17 Expired
US6128873A Integrated prefabricated furniture system for fitting-out open plan building space Mechanical Engineering; Lighting; Heating 16 Expired
US6397532B1 Partition frame construction having wireways and off-module connection Emerging Cross-Sectional Technologies 14 Expired
US6266935A Floor channel for partition system Fixed Constructions 12 Expired
US6044612A Connection system for partitions Emerging Cross-Sectional Technologies 12 Expired
US6279643A Prefabricated furniture Fixed Constructions 10 Expired

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