Assignee
LEESONA CORP
81 patents
Top patents by PatentIndex Score
US4235579ANov 25, 1980
Synthetic plastics article manufacturing system
LEESONA CORP69 citations94
US4555377ANov 26, 1985
Thermoforming methods and apparatus
LEESONA CORP29 citations91
US4529372AJul 16, 1985
Hollow article forming apparatus
LEESONA CORP43 citations91
US4377377AMar 22, 1983
Differential pressure forming machine with variable mold closed cycle
LEESONA CORP34 citations91
US4528556AJul 9, 1985
Defective motor brush detector
LEESONA CORP36 citations90
US4464329AAug 7, 1984
Differential pressure synthetic plastic forming machine and method with formed article carrier means
LEESONA CORP32 citations89
US4454084AJun 12, 1984
Extrusion die control system
LEESONA CORP78 citations89
US4099900AJul 11, 1978
Pellet cooling system
LEESONA CORP34 citations89
US4347872ASep 7, 1982
Air weft insertion system
LEESONA CORP29 citations87
US3963519AJun 15, 1976
Metal/air cell
LEESONA CORP106 citations86
US4000860AJan 4, 1977
Size reduction apparatus
LEESONA CORP56 citations85
US4509909AApr 9, 1985
Clamp mechanism for differential pressure thermoformer
LEESONA CORP23 citations82
US4028779AJun 14, 1977
Film granulator
LEESONA CORP27 citations82
US4079114AMar 14, 1978
Method and apparatus for embossing sheets
LEESONA CORP42 citations81
US3981959ASep 21, 1976
Pelletizing method
LEESONA CORP36 citations81
US4226379AOct 7, 1980
Loom storage feeder improvement
LEESONA CORP29 citations79
US4158539AJun 19, 1979
Thermoforming machine with variable mold closed cycle
LEESONA CORP29 citations79
US4391768AJul 5, 1983
Methods and apparatus for curling lips about the open mouths of stacked thermoplastic containers
LEESONA CORP23 citations78
US4184833AJan 22, 1980
Pelletizing apparatus
LEESONA CORP20 citations78
US4061282ADec 6, 1977
Easy access-low noise granulator
LEESONA CORP24 citations76
US3930886AJan 6, 1976
Porous fluoro-carbon polymer matrices
LEESONA CORP27 citations76
US4421141ADec 20, 1983
Fabric selvage forming
LEESONA CORP17 citations73
US4321027AMar 23, 1982
Under the press granulator construction
LEESONA CORP25 citations73
US4173161ANov 6, 1979
Trim press
LEESONA CORP19 citations73
US4466468AAug 21, 1984
Strand delivery system
LEESONA CORP13 citations72
US4458729AJul 10, 1984
Strand delivery and storage system
LEESONA CORP14 citations72
US4450874AMay 29, 1984
Yarn clamp
LEESONA CORP13 citations72
US4384596AMay 24, 1983
Means and method for sensing loom conditions indicative of potential fabric defects
LEESONA CORP17 citations72
US4306474ADec 22, 1981
Trim press with oscillating canopy sheet feed
LEESONA CORP14 citations72
US4194663AMar 25, 1980
Hydromechanical plastic web indexing system for synthetic plastics thermoforming machinery
LEESONA CORP16 citations72
US4502588AMar 5, 1985
Apparatus and methods for transferring nested stacks of plastic articles from an elevated chute to an underlying conveyor surface
LEESONA CORP13 citations71
US4300599ANov 17, 1981
Warp detection system
LEESONA CORP7 citations71
US4151251AApr 24, 1979
Pelletizing process
LEESONA CORP11 citations71
US4106708AAug 15, 1978
Granulator and knife construction therefor
LEESONA CORP19 citations71
US3941684AMar 2, 1976
Scrap salvage system
LEESONA CORP25 citations71
US4255382AMar 10, 1981
Thermoforming machine with automatically mechanically operated web stripping element
LEESONA CORP18 citations70
US4221753ASep 9, 1980
Extrusion process
LEESONA CORP7 citations70
US4206882AJun 10, 1980
Granulator blade construction
LEESONA CORP10 citations70
US4191039AMar 4, 1980
Sheet shaping method
LEESONA CORP10 citations70
US4151241AApr 24, 1979
Method of cooling pellets
LEESONA CORP8 citations70
US4566646AJan 28, 1986
Take-up machine motor control
LEESONA CORP18 citations69
US4236885ADec 2, 1980
Container lining
LEESONA CORP8 citations69
US4473096ASep 25, 1984
Weft end reception system
LEESONA CORP10 citations68
US4368854AJan 18, 1983
Yarn feeder motor control
LEESONA CORP12 citations68
US4009839AMar 1, 1977
Winding apparatus
LEESONA CORP10 citations68
US4006863AFeb 8, 1977
Strand scattering winding machine
LEESONA CORP11 citations68
US3968939AJul 13, 1976
Traverse cam lubrication
LEESONA CORP11 citations68
US4294414AOct 13, 1981
Feed roll device for sheet granulator
LEESONA CORP12 citations67
US4380183AApr 19, 1983
Plastics trim press sheet feeding mechanisms
LEESONA CORP12 citations66
US4302172ANov 24, 1981
Extrusion die assembly
LEESONA CORP18 citations66
Showing the top 50 of 81 patents by PatentIndex Score.