Inventor

LANKARD DAVID R

9 patents

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

BATTELLE DEVELOPMENT CORP

2 patents

US4339289AJul 13, 1982

Concrete overlay construction

BATTELLE DEVELOPMENT CORP56 citations95

US3986885AOct 19, 1976

Flexural strength in fiber-containing concrete

BATTELLE DEVELOPMENT CORP115 citations95

DIEBOLD INC

2 patents

US4559881ADec 24, 1985

Burglary resistant steel fiber reinforced concrete construction for vault walls and doors and manufacture thereof

DIEBOLD INC87 citations94

US4593627AJun 10, 1986

Burglary attack resistant money safe high fiber concrete reinforced metal encased wall and door construction and manufacture

DIEBOLD INC33 citations90

PMCMA RES GROUP

2 patents

US4148660AApr 10, 1979

Plaster molding composition

PMCMA RES GROUP13 citations69

US4081283AMar 28, 1978

Plaster molding composition

PMCMA RES GROUP14 citations69

RIBBON TECHNOLOGY COURT

1 patent

US4668548AMay 26, 1987

Integrally-anchored fiber-reinforced concrete overlays and surfacings and method of making same

RIBBON TECHNOLOGY COURT58 citations92

RIBBON TECHNOLOGY INC

1 patent

US4513040AApr 23, 1985

Highly wear-resistant steel fiber reinforced concrete tiles

RIBBON TECHNOLOGY INC60 citations92

WAHL REFRACTORY PROD

1 patent

US4366255ADec 28, 1982

Highly reinforced refractory concrete with 4-20 volume % steel fibers

WAHL REFRACTORY PROD71 citations92