Inventor

HILLSTROM DAVID U

US61 patents

⚠️ This page may combine multiple inventors who share the name “HILLSTROM DAVID U”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MARKETING DISPLAYS INC

43 patents

US6125565AOct 3, 2000

Outdoor menu display device

MARKETING DISPLAYS INC94 citations99

USD392686SMar 24, 1998

Sign stand with rolling base

MARKETING DISPLAYS INC95 citations97

US7584563B2Sep 8, 2009

Sign stand with rolling base

MARKETING DISPLAYS INC46 citations96

US6298589B1Oct 9, 2001

Outdoor menu display device

MARKETING DISPLAYS INC33 citations96

US5428913AJul 4, 1995

Pole banner system

MARKETING DISPLAYS INC56 citations96

USD351863SOct 25, 1994

Free standing sign stand

MARKETING DISPLAYS INC71 citations96

US4145828AMar 27, 1979

Poster display device

MARKETING DISPLAYS INC69 citations96

US6843011B2Jan 18, 2005

Menu display device

MARKETING DISPLAYS INC16 citations93

US6631576B2Oct 14, 2003

Outdoor menu display device

MARKETING DISPLAYS INC19 citations93

US6560906B1May 13, 2003

Portable sign stand having frangible post

MARKETING DISPLAYS INC29 citations93

US5829178ANov 3, 1998

Portable collapsible sign and stand

MARKETING DISPLAYS INC41 citations93

US5682694ANov 4, 1997

Outdoor menu display device

MARKETING DISPLAYS INC25 citations93

US5647155AJul 15, 1997

Sheet tensioning system

MARKETING DISPLAYS INC35 citations93

US5040586AAug 20, 1991

Banner holding device

MARKETING DISPLAYS INC28 citations93

US4756107AJul 12, 1988

Display retention and tensioning frame

MARKETING DISPLAYS INC45 citations93

US4691892ASep 8, 1987

Sign and sign stand

MARKETING DISPLAYS INC58 citations93

US4040223AAug 9, 1977

Panel framing device and method

MARKETING DISPLAYS INC32 citations93

US6755381B1Jun 29, 2004

Portable sign stand with leg release mechanism

MARKETING DISPLAYS INC31 citations92

US6606809B2Aug 19, 2003

Fold-up sign panel assembly

MARKETING DISPLAYS INC32 citations92

US5725186AMar 10, 1998

Universal flexible sign mounting device

MARKETING DISPLAYS INC28 citations92

US5442871AAug 22, 1995

Poster and sign display assembly

MARKETING DISPLAYS INC45 citations92

USD360078SJul 11, 1995

Wall mounted sign frame

MARKETING DISPLAYS INC28 citations92

US5381324AJan 10, 1995

Illuminated canopy system

MARKETING DISPLAYS INC23 citations92

US4592530AJun 3, 1986

Universal mounting bracket for gas pump toppers

MARKETING DISPLAYS INC26 citations92

US5815971AOct 6, 1998

Poster frame with moisture seal

MARKETING DISPLAYS INC67 citations91

US4958458ASep 25, 1990

Poster display device with longitudinal retention of frame sections by inserts

MARKETING DISPLAYS INC42 citations91

US4937959AJul 3, 1990

Poster display device with longitudinal retention of frame sections

MARKETING DISPLAYS INC25 citations91

US5675923AOct 14, 1997

Rigid sign with protective changeable indicia member

MARKETING DISPLAYS INC38 citations87

US4433935AFeb 28, 1984

Sign bracket

MARKETING DISPLAYS INC34 citations87

US5142804ASep 1, 1992

Releasable anchoring and tensioning apparatus for billboard displays

MARKETING DISPLAYS INC24 citations86

US7941951B2May 17, 2011

Sign stand with rolling base

MARKETING DISPLAYS INC8 citations84

US7458554B1Dec 2, 2008

Portable sign stand with sign release mechanism

MARKETING DISPLAYS INC12 citations83

US4862615ASep 5, 1989

Releasable anchoring and tensioning apparatus for billboard displays

MARKETING DISPLAYS INC23 citations82

US4730803AMar 15, 1988

Ground access elevated pole banner

MARKETING DISPLAYS INC22 citations82

US7996980B2Aug 16, 2011

Sign stand with rolling base

MARKETING DISPLAYS INC5 citations74

US7698843B2Apr 20, 2010

Flexible sign mount

MARKETING DISPLAYS INC12 citations74

US5746503AMay 5, 1998

Illuminated canopy system

MARKETING DISPLAYS INC9 citations74

US5713659AFeb 3, 1998

Illuminated canopy with access doors

MARKETING DISPLAYS INC6 citations74

US5613763AMar 25, 1997

Method for installing illuminated canopy system

MARKETING DISPLAYS INC4 citations74

US5537302AJul 16, 1996

Illuminated sign with patterned openings on light dispersion member

MARKETING DISPLAYS INC8 citations74

US4823533AApr 25, 1989

Structural cladding apparatus

MARKETING DISPLAYS INC20 citations74

US4648169AMar 10, 1987

Method of mounting universal mounting bracket for gas pump toppers

MARKETING DISPLAYS INC8 citations74

US5738294AApr 14, 1998

Movable apparatus for installing flexible sign panels

MARKETING DISPLAYS INC8 citations73

SARKISIAN ROBERT

2 patents

US4138787AFeb 13, 1979

Display holder

SARKISIAN ROBERT34 citations92

US4033536AJul 5, 1977

Mounting bracket coil spring

SARKISIAN ROBERT39 citations92

MARKETING DISPLAYS INTERNAT

2 patents

US6237883B1May 29, 2001

Sign bracket for sign stand

MARKETING DISPLAYS INTERNAT26 citations91

US6427964B1Aug 6, 2002

Flag holder bracket for sign stand

MARKETING DISPLAYS INTERNAT17 citations82

(unassigned)

1 patent

US5983543ANov 16, 1999

Outdoor menu display device

MARKETING DISPLAYS INTERNATION

1 patent

US6056250AMay 2, 2000

Sign stand for flexible traffic control signage

MARKETING DISPLAYS INTERNATION27 citations90

HILLSTROM DAVID U

1 patent

US8104205B2Jan 31, 2012

Sign stand with rolling base

HILLSTROM DAVID U12 citations89

Showing the top 50 of 61 patents by PatentIndex Score.