ROBROY INDUSTRIES
21Patents
6Active
21Granted
38Portfolio score
Filing activity: Nov 24, 1975 → Nov 28, 2018 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4417711A | Pipe hanger | Emerging Cross-Sectional Technologies | 52 | Expired |
| US5232277A | Enclosure for holding electrical components and the like | Electricity | 51 | Expired |
| US4524937A | Buckle connection for hanging cable | Mechanical Engineering; Lighting; Heating | 47 | Expired |
| US5621189A | Coated conduit outlet fitting | Electricity | 47 | Expired |
| US4397437A | Beam clamp | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US4427219A | Compression coupling | Mechanical Engineering; Lighting; Heating | 32 | Expired |
| US6642446B2 | Enclosure | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4638966A | Support member for hanging cable | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US4076280A | Conduit coupling | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US6469247B1 | Enclosure | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4262409A | Cable connector | Emerging Cross-Sectional Technologies | 19 | Expired |
| US7360797B2 | Coupling assembly and method | Emerging Cross-Sectional Technologies | 11 | Expired |
| US8129462B2 | High temperature liner | Chemistry; Metallurgy | 9 | Active |
| USD913960S1 | Conduit fitting | General | 6 | Active |
| US5843532A | Coated conduit outlet fitting and method and apparatus for forming a coated conduit outlet fitting | Electricity | 6 | Expired |
| US6349748B1 | Insulated tubing | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US9578765B2 | Hole plug device | Emerging Cross-Sectional Technologies | 5 | Active |
| US4030866A | Molding apparatus | Performing Operations; Transporting | 3 | Expired |
| US7909368B2 | Pipe coupling assembly and method for lined and unlined pipe | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US7857355B2 | High pressure pipe liner coupling assembly and method | Emerging Cross-Sectional Technologies | 1 | Active |
| US9255452B2 | Flush fitting pipe lining system | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.