Herbert Stephan
16Patents
8h-index
17Co-inventors
69Inventor score
Filing activity: May 3, 1978 → Oct 9, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4192253A | Vacuum coating apparatus | Chemistry; Metallurgy | 29 | Expired |
| US4184448A | Vacuum coating apparatus having a plurality of lock chambers | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4218410A | Method for the production of high-purity metal powder by means of electron beam heating | Performing Operations; Transporting | 25 | Expired |
| US4730661A | Process and device for melting and remelting metals in particle form into strands, especially into slabs | Chemistry; Metallurgy | 23 | Expired |
| US4295808A | Apparatus for the production of high-purity metal powder by means of electron beam heating | Performing Operations; Transporting | 18 | Expired |
| US4238525A | Method and apparatus for vacuum depositing thin coatings using electron beams | Chemistry; Metallurgy | 13 | Expired |
| US4237148A | Method of vaporizing alloys of metals having different vapor pressures | Chemistry; Metallurgy | 12 | Expired |
| US4230739A | Method of evaporating melts of alloys of metals having different vapor pressures | Chemistry; Metallurgy | 9 | Expired |
| US4233342A | Method for vapor-coating turbine buckets | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4233515A | Instrument for determining the radiation parameters of a focused charged-particle beam and method | Electricity | 6 | Expired |
| US6828026B2 | Hollow balls and a method for producing hollow balls and for producing light-weight structural components by means of hollow balls | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4214015A | Method of coating metal substrates with alloys at elevated substrate temperatures | Chemistry; Metallurgy | 5 | Expired |
| US4208042A | Evaporating crucible | Chemistry; Metallurgy | 3 | Expired |
| US4821791A | Melting furnace for producing strand-cast ingots in a protective gas atmosphere | Performing Operations; Transporting | 3 | Expired |
| US4226587A | Heating system for vacuum coating apparatus | Chemistry; Metallurgy | 1 | Expired |
| US4258645A | Coupling for stationary and movable vacuum chambers | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.