Inventor · Emmaus, PA, US

David J. Klee

23Patents
11h-index
15Co-inventors
72Inventor score

Filing activity: Aug 6, 1969 → Nov 2, 1994

Most-cited inventions

PatentTitleAreaCited byStatus
US4229947A Cryogenic freezer Mechanical Engineering; Lighting; Heating 25 Expired
US4627197A Process control for cryogenic decoating Performing Operations; Transporting 25 Expired
US4528819A Exhaust control for cryogenic freezer Mechanical Engineering; Lighting; Heating 22 Expired
US4726195A Cryogenic forced convection refrigerating system Mechanical Engineering; Lighting; Heating 20 Expired
US4475351A Dual-flow cryogenic freezer Mechanical Engineering; Lighting; Heating 20 Expired
US4866946A Spiral cryogenic freezer Performing Operations; Transporting 19 Expired
US5343714A Spiral freezer Performing Operations; Transporting 17 Expired
US5054292A Cryogenic freezer control Mechanical Engineering; Lighting; Heating 15 Expired
US4800728A Method and apparatus for gas flow control in a cryogenic freezer Mechanical Engineering; Lighting; Heating 14 Expired
US4524550A Discharge of blasting media from a treating chamber Performing Operations; Transporting 13 Expired
US4033140A Refrigeration system for shipping container Mechanical Engineering; Lighting; Heating 11 Expired
US4524548A Continuous deflashing system Performing Operations; Transporting 11 Expired
US5168711A Convective heat transfer system for a cryogenic freezer Mechanical Engineering; Lighting; Heating 11 Expired
US5605049A Exhaust system for a cryogenic freezer Mechanical Engineering; Lighting; Heating 10 Expired
US4441327A Temperature actuated valve and phase separation method Mechanical Engineering; Lighting; Heating 9 Expired
US4580413A Pressurized fluid lift system for a cryogenic freezer Mechanical Engineering; Lighting; Heating 9 Expired
US4635408A Discharge of blasting media from a treating chamber Performing Operations; Transporting 7 Expired
US4372130A Carbon dioxide snow generator with purging means Chemistry; Metallurgy 5 Expired
US4451002A Temperature actuated valve and phase separation method Mechanical Engineering; Lighting; Heating 4 Expired
US4527844A Thermally insulated chamber Mechanical Engineering; Lighting; Heating 1 Expired
USRE28712A Parallel flow cryogenic freezer General 1 Expired
US5517827A Dual flow tunnel freezer Mechanical Engineering; Lighting; Heating 0 Expired
US4519171A Work-holding fixture for cryogenic decoating Performing Operations; Transporting 0 Expired

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