David Chelchowski
11Patents
7h-index
7Co-inventors
59Inventor score
Filing activity: Aug 9, 1991 → Aug 30, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7455328B2 | Collet for pipe coupling | Emerging Cross-Sectional Technologies | 31 | Expired |
| US6702336B1 | Coupling device for polymeric pipes | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US5280803A | A valve arrangement | Emerging Cross-Sectional Technologies | 28 | Expired |
| USD558037S1 | O-ring | General | 18 | Expired |
| US6974162B2 | Pipe coupling | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US7270351B2 | Pipe coupling | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5502846A | Flush tank mechanism | Fixed Constructions | 8 | Expired |
| US6471183B2 | Ball valve | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US7178838B2 | Nut and tail assembly | Performing Operations; Transporting | 3 | Expired |
| US8764069B2 | Stepped down grip ring for use in pipe couplings and pipe coupling incorporating same | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US7846365B2 | Method of manufacture of a nut and tail assembly | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.