David Yang
34Patents
5h-index
29Co-inventors
69Inventor score
Filing activity: Sep 30, 1982 → Dec 6, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5378085A | Methods for in situ construction of deep soil-cement structures | Fixed Constructions | 22 | Expired |
| US5417522A | Soil fragmentation members and multiple lateral support structures for improved soil mixing and efficient boring for use on multi-shaft auger soil mixing apparatus | Fixed Constructions | 14 | Expired |
| US5368415A | Spiral flights for improved soil mixing and efficient boring for use on multi-shaft auger soil mixing apparatus | Fixed Constructions | 9 | Expired |
| US4523949A | Aluminum dross reclamation | Chemistry; Metallurgy | 7 | Expired |
| US10688595B2 | Laser welding overlapping metal workpieces | Performing Operations; Transporting | 6 | Active |
| US10675713B2 | Remote laser welding of overlapping metal workpieces using helical path(s) | Performing Operations; Transporting | 5 | Active |
| US10195689B2 | Laser welding of overlapping metal workpieces assisted by varying laser beam parameters | Performing Operations; Transporting | 5 | Active |
| US10010966B2 | Electrode for resistance spot welding of dissimilar metals | Performing Operations; Transporting | 4 | Active |
| US9586282B2 | Welding a joint | Performing Operations; Transporting | 4 | Active |
| US10421148B2 | External heat assisted welding of dissimilar metal workpieces | Performing Operations; Transporting | 3 | Active |
| US5857435A | Two cycle engine | Emerging Cross-Sectional Technologies | 3 | Expired |
| US10058949B2 | Resistance spot welding steel and aluminum workpieces using insertable cover | Performing Operations; Transporting | 3 | Active |
| US10166627B2 | Aluminum alloy to steel welding process | Performing Operations; Transporting | 3 | Active |
| US9333588B2 | Crack avoidance in resistance spot welded materials | Performing Operations; Transporting | 2 | Active |
| US9737956B2 | Resistance spot welding thin gauge steels | Performing Operations; Transporting | 2 | Active |
| US8535395B2 | Beam welding of a multi-sheet work stack having a reduced thickness feature | Emerging Cross-Sectional Technologies | 2 | Active |
| US11148226B2 | Multi-beam laser spot welding of coated steels | Performing Operations; Transporting | 2 | Active |
| US10953494B2 | Remote laser welding of overlapping metal workpieces at fast speeds | Performing Operations; Transporting | 2 | Active |
| US10329639B2 | Multilayer steel and method of reducing liquid metal embrittlement | Emerging Cross-Sectional Technologies | 1 | Active |
| US10675701B2 | Method and apparatus for resistance spot welding overlapping steel workpieces | Performing Operations; Transporting | 1 | Active |
| US10953497B2 | Method for laser welding steel workpieces | Performing Operations; Transporting | 1 | Active |
| US11084119B2 | Electrode for resistance spot welding of dissimilar materials | Performing Operations; Transporting | 1 | Active |
| US8481883B2 | Welding method and apparatus | Performing Operations; Transporting | 1 | Active |
| US10946479B2 | Laser spot welding of overlapping aluminum workpieces | Performing Operations; Transporting | 1 | Active |
| US10569477B2 | Joining of thermoplastic to metal with enhanced interfacial chemical bonding | Performing Operations; Transporting | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.