J. Tad Heyman
42Patents
13h-index
10Co-inventors
78Inventor score
Filing activity: Feb 6, 1987 → Sep 1, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5429437A | Collapsible, self-expanding liquid container | Emerging Cross-Sectional Technologies | 60 | Expired |
| US6530722B1 | Drain sealing device | Fixed Constructions | 44 | Expired |
| US5891223A | Multi-stage vent filter | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5096083A | Polyethylene shipping drum | Performing Operations; Transporting | 42 | Expired |
| US5924461A | Liquid containment apparatus with flexible side wall | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US4708258A | Salvage drum | Emerging Cross-Sectional Technologies | 31 | Expired |
| US6092686A | Collapsible liquid containment device | Fixed Constructions | 31 | Expired |
| US6811708B2 | Curb guard filter | Fixed Constructions | 27 | Expired |
| US5117878A | Drainfield funnel | Performing Operations; Transporting | 24 | Expired |
| US5577539A | Drum-top drainfield funnel | Performing Operations; Transporting | 19 | Expired |
| US5042683A | Containment storage apparatus | Performing Operations; Transporting | 18 | Expired |
| US7879233B2 | Drain grate filter assembly with compressible anchors | Fixed Constructions | 16 | Active |
| US5636753A | Stabilizer for plural drum stacks | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5615608A | Reinforced containment pallet | Performing Operations; Transporting | 12 | Expired |
| US6173856A | Spill containment pan | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7404892B2 | Storm water catch basin filter comprising an anti-microbial agent | Fixed Constructions | 11 | Active |
| US5642834A | Secondary containment reservoir device | Performing Operations; Transporting | 11 | Expired |
| US8002977B2 | Storm drain anchored grate cover | Fixed Constructions | 10 | Active |
| US7073800B2 | Child carrier attachment for shopping carts | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7950706B2 | Magnetic bumper guard | Performing Operations; Transporting | 9 | Active |
| US7563364B2 | Curb inlet filter | Chemistry; Metallurgy | 8 | Active |
| US7674071B2 | Method of beach renourishment using sand-entrapping wattles | Emerging Cross-Sectional Technologies | 8 | Active |
| USD317850S | Funnel | General | 7 | Expired |
| USD309364S | Salvage drum | General | 7 | Expired |
| US7827928B2 | Tactile warning pad with shearable anchor members | Fixed Constructions | 7 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.