Inventor · Dunlap, IA, US

John L. Sullivan

37Patents
11h-index
22Co-inventors
75Inventor score

Filing activity: Jan 3, 1974 → Jan 15, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US5047156A Oil recovery vessel and method utilizing adjustable weir Emerging Cross-Sectional Technologies 24 Expired
US5456831A Portable water filtering device Chemistry; Metallurgy 22 Expired
US5078308A Device to apply elastic gloves Human Necessities 22 Expired
US5078874A Fire chamber water filter device Chemistry; Metallurgy 22 Expired
US4944478A Portable grab bar Human Necessities 21 Expired
US6305325A Livestock blow dryer Mechanical Engineering; Lighting; Heating 21 Expired
US5569380A Portable water filtering device Chemistry; Metallurgy 15 Expired
US6539809B1 Test apparatus for measuring stresses and strains Physics 14 Expired
US4279625A Electrostatic system for concentrating, propelling and collecting airborne particulates for industrial furnaces Performing Operations; Transporting 12 Expired
US6370962B1 Dynamic high speed tensile tester Physics 12 Expired
USD739986S1 Dual-sided livestock grooming tool General 12 Active
US5292430A Oil spill recovery and storage ship Emerging Cross-Sectional Technologies 9 Expired
US4073776A Tackifiers for elastomers Chemistry; Metallurgy 9 Expired
US5017546A Alkyl salicylate developer resin for carbonless copy paper and imaging use Performing Operations; Transporting 9 Expired
US4073826A Tackifiers for elastomers Chemistry; Metallurgy 9 Expired
US5957538A Combination belly and rear dump trailer Performing Operations; Transporting 9 Expired
US6065635A Filter straw with cap Performing Operations; Transporting 9 Expired
US4137856A Apparatus for forming a permanent end loop in a fabric web Textiles; Paper 7 Expired
US6345853B1 Self-supporting, confined space entry mobile unit Performing Operations; Transporting 6 Expired
US4094834A ABS-formaldehyde novolak Emerging Cross-Sectional Technologies 6 Expired
US8857636B2 Sectional container with a detachable base and lid cover Performing Operations; Transporting 6 Active
USD313185S Programmable opening container General 6 Expired
USD427388S Livestock blow dryer General 6 Expired
USRE40196E1 Livestock blow dryer General 5 Expired
USD883043S1 Scoop General 4 Active

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