Assignee
DONN INC
US52 patents
Top patents by PatentIndex Score
US4642418AFeb 10, 1987
Utility module for walls and the like
DONN INC66 citations96
US4443991AApr 24, 1984
Demountable partition structure
DONN INC58 citations96
US4397127AAug 9, 1983
Extendable stud for partition walls or the like
DONN INC105 citations96
US4206578AJun 10, 1980
Grid tee for suspension ceilings or the like
DONN INC63 citations96
US4535580AAug 20, 1985
Screw slot runner system
DONN INC63 citations94
US4603229AJul 29, 1986
Utility module for walls
DONN INC42 citations93
US4696142ASep 29, 1987
Suspension ceiling with snap-up panels
DONN INC51 citations92
US4583340AApr 22, 1986
Fixture support clip for suspension ceiling grid systems
DONN INC34 citations92
US4573304AMar 4, 1986
Honeycomb floor panel and the like
DONN INC31 citations92
US4505083AMar 19, 1985
Delineated ceiling grid in suspended ceiling
DONN INC35 citations92
US4492066AJan 8, 1985
Suspension ceiling grid system
DONN INC41 citations92
US4679375AJul 14, 1987
Suspension ceiling grid system with narrow-faced grid
DONN INC44 citations91
US4648230AMar 10, 1987
Locking connection for suspension ceiling grid systems
DONN INC36 citations91
US4621468ANov 11, 1986
Concrete metal-backed access floor panel
DONN INC54 citations91
US4545170AOct 8, 1985
Expanded metal products
DONN INC34 citations91
US4394794AJul 26, 1983
Metal fastening system and method
DONN INC28 citations91
US4611453ASep 16, 1986
Suspension ceiling grid connectors
DONN INC30 citations90
US4413457ANov 8, 1983
Checkered wall or ceiling system
DONN INC31 citations90
US4817357AApr 4, 1989
Suspension ceiling grid tee
DONN INC40 citations89
US4770018ASep 13, 1988
Method for producing cold roll-formed structures
DONN INC30 citations89
US4578910AApr 1, 1986
Elevated floor panel system
DONN INC83 citations89
US4646506AMar 3, 1987
Linear panel ceilings and the like
DONN INC50 citations88
US4407011ASep 27, 1983
Integrated lighting systems for suspended ceilings or the like
DONN INC35 citations88
US4640064AFeb 3, 1987
Suspension ceiling system combining snap-up pans and lay-in panels
DONN INC95 citations86
US4546584AOct 15, 1985
Wall panel system providing resilient joints
DONN INC39 citations86
US4520609AJun 4, 1985
Grid tee for suspension ceilings or the like
DONN INC48 citations86
US4744188AMay 17, 1988
Suspended island ceiling system
DONN INC65 citations85
US4625491ADec 2, 1986
Elevated floor panel with integral trim
DONN INC55 citations85
US4660348AApr 28, 1987
Linear metal ceiling and wall system
DONN INC21 citations82
US4531340AJul 30, 1985
Beam splice for supporting grid systems
DONN INC24 citations82
US4499697AFeb 19, 1985
Suspended ceiling with removable tee sections
DONN INC24 citations82
US4485605ADec 4, 1984
Suspension ceiling grid with removable grid members
DONN INC23 citations82
US4470239ASep 11, 1984
Suspended ceiling grid system
DONN INC25 citations82
US4408427AOct 11, 1983
Framing system for demountable walls or the like
DONN INC42 citations81
US4628656ADec 16, 1986
Demountable wall panel
DONN INC22 citations80
US4574547AMar 11, 1986
Window system for demountable walls
DONN INC24 citations80
US4484426ANov 27, 1984
Support system for landscape screens
DONN INC22 citations78
US4426824AJan 24, 1984
Floor panel and method of making same
DONN INC21 citations77
US4574555AMar 11, 1986
Access floor panel with edge trim
DONN INC25 citations76
US4514945AMay 7, 1985
Window insulating system
DONN INC12 citations74
US4484428ANov 27, 1984
Suspended ceiling grid system
DONN INC15 citations74
US4689870ASep 1, 1987
Method of making honeycomb floor panel
DONN INC17 citations73
US4598521AJul 8, 1986
Suspension ceiling grid with end connector
DONN INC24 citations73
US4594833AJun 17, 1986
Honeycomb floor panel and the like
DONN INC16 citations73
US4257206AMar 24, 1981
Fire rated ceiling
DONN INC11 citations73
US4598514AJul 8, 1986
Suspension ceiling grid runner with expansion means
DONN INC14 citations72
US4779394AOct 25, 1988
Connector for suspension ceiling grid
DONN INC16 citations71
US4621474ANov 11, 1986
Grid connectors for suspension ceiling
DONN INC17 citations71
US4448006AMay 15, 1984
Grid ceiling structure and method of converting
DONN INC8 citations71
US4753058AJun 28, 1988
Elevated floor panel and method of manufacturing same
DONN INC10 citations70
Showing the top 50 of 52 patents by PatentIndex Score.