William J. Platt
40Patents
19h-index
10Co-inventors
78Inventor score
Filing activity: May 13, 1985 → Jun 4, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7293393B2 | Perimeter clip for seismic ceilings | Fixed Constructions | 55 | Expired |
| US5046294A | Perimeter clip | Fixed Constructions | 52 | Expired |
| US4794745A | Tier drop grid system | Fixed Constructions | 45 | Expired |
| US5839246A | Grid framework for suspended ceiling | Emerging Cross-Sectional Technologies | 42 | Expired |
| US7614195B2 | Suspended ceiling grid network utilizing seismic separation joint clips | Fixed Constructions | 40 | Active |
| US4912894A | Interlocking cross tee | Fixed Constructions | 31 | Expired |
| US7578107B2 | Suspended ceiling segment | Fixed Constructions | 30 | Active |
| US6138416A | Beam | Fixed Constructions | 25 | Expired |
| US7788872B2 | Seismic main beam connection | Fixed Constructions | 25 | Active |
| US6701686B1 | Ceiling grid with seal | Fixed Constructions | 25 | Expired |
| US6523313B2 | Main beam connection | Fixed Constructions | 23 | Expired |
| US4827681A | Interlocking cross tee | Fixed Constructions | 23 | Expired |
| US8096089B2 | Suspended ceiling cloud with flexible panel | Fixed Constructions | 22 | Active |
| US7240460B2 | Molding for drywall ceiling grid | Fixed Constructions | 22 | Expired |
| US6722098B2 | Beam for drywall ceiling | Fixed Constructions | 21 | Expired |
| US4916877A | Fire strip construction | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4713919A | Laser welded ceiling grid members | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4785603A | Interlocking cross tee | Fixed Constructions | 20 | Expired |
| US4864791A | Fire strip | Emerging Cross-Sectional Technologies | 19 | Expired |
| US7278243B2 | Molding for suspended panel ceiling | Fixed Constructions | 17 | Expired |
| US4606166A | Fire-rated beam with expansion relief section | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7661236B2 | Stab-in connector with expansion relief | Fixed Constructions | 10 | Active |
| US7520095B2 | Hook connector with plastic fire relief | Emerging Cross-Sectional Technologies | 10 | Active |
| US4727703A | Suspended ceiling grid structure | Fixed Constructions | 9 | Expired |
| US8590275B2 | Single-layered web beam for a panel suspended ceiling | Emerging Cross-Sectional Technologies | 9 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.