Ralph Henry Hagg
7Patents
3h-index
14Co-inventors
50Inventor score
Filing activity: Jun 26, 2002 → May 18, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6666070B1 | Method for testing the integrity of DPFs | Physics | 19 | Expired |
| US7803303B2 | Methods and apparatus for plugging honeycomb structures | Performing Operations; Transporting | 6 | Active |
| US9833927B2 | Method for making a honeycomb structure comprising coating a honeycomb body with cement skin layers | Emerging Cross-Sectional Technologies | 4 | Active |
| US9067831B2 | Honeycomb structure comprising a multilayer cement skin | Chemistry; Metallurgy | 3 | Active |
| US9803523B2 | Process for axial skinning apparatus | Chemistry; Metallurgy | 2 | Active |
| US8808601B2 | Method for manufacturing ceramic filter | Performing Operations; Transporting | 1 | Active |
| US10052792B2 | Method and system for control of an axial skinning apparatus | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.