John W. Pierce
36Patents
21h-index
14Co-inventors
78Inventor score
Filing activity: Apr 10, 1992 → May 14, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD583444S1 | Pipe coupling | General | 82 | Expired |
| USD583916S1 | Pipe coupling | General | 76 | Expired |
| USD587349S1 | Pipe coupling | General | 66 | Expired |
| USD602127S1 | Flexible ribbed pipe coupling | General | 63 | Expired |
| USD583914S1 | Pipe coupling | General | 59 | Expired |
| US7726703B2 | Deformable pipe coupling having multiple radii of curvature | Emerging Cross-Sectional Technologies | 46 | Active |
| USD587347S1 | Pipe coupling segment | General | 41 | Expired |
| US8267432B2 | Coupling having angularly oriented key surfaces | Mechanical Engineering; Lighting; Heating | 38 | Active |
| USD595814S1 | Pipe coupling segment | General | 36 | Expired |
| USD587348S1 | Pipe coupling segment | General | 33 | Expired |
| US8136847B2 | Coupling having angularly oriented shoulder surfaces | Emerging Cross-Sectional Technologies | 30 | Active |
| US7722087B2 | Coupling having angularly oriented cavity | Emerging Cross-Sectional Technologies | 30 | Active |
| USD605734S1 | Rigid pipe coupling | General | 30 | Expired |
| USD595815S1 | Pipe coupling | General | 29 | Expired |
| USD600784S1 | Flexible pipe coupling | General | 28 | Expired |
| USD607549S1 | Flexible ribbed pipe coupling segment | General | 28 | Expired |
| US7818869B2 | Method of using a coupling having an angularly oriented cavity | Emerging Cross-Sectional Technologies | 27 | Active |
| US6595062B1 | High temperature rake for suspersonic flow | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US8819914B2 | Method of securing pipe elements in end to end relation | Emerging Cross-Sectional Technologies | 24 | Active |
| USD590925S1 | Pipe coupling | General | 24 | Expired |
| USD590923S1 | Pipe coupling segment | General | 21 | Expired |
| USD614269S1 | Rigid pipe coupling segment | General | 21 | Expired |
| USD613377S1 | Ribbed pipe coupling segment | General | 20 | Expired |
| USD612463S1 | Ribbed pipe coupling segment | General | 19 | Expired |
| USD608866S1 | Flexible pipe coupling segment | General | 19 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.