Leybold-Heraeus GmbH
185Patents
0Active
185Granted
42Portfolio score
Filing activity: Jun 18, 1974 → May 19, 1989
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4767641A | Plasma treatment apparatus | Electricity | 136 | Expired |
| US4813846A | Inserting device for vacuum apparatus | Emerging Cross-Sectional Technologies | 102 | Expired |
| US4919778A | Process for the production of curve glazing with a high transmittance in the visible spectral range and a high reflectance for thermal radiation | Chemistry; Metallurgy | 63 | Expired |
| US4661409A | Method of producing amorphous carbon coatings on substrates and substrates coated by this method | Emerging Cross-Sectional Technologies | 62 | Expired |
| US4569738A | Method of producing amorphous carbon coatings on substrates by plasma deposition | Emerging Cross-Sectional Technologies | 59 | Expired |
| US4548691A | Thermally insulating glazing | Physics | 56 | Expired |
| US4300875A | Positive displacement machine with elastic suspension | Mechanical Engineering; Lighting; Heating | 54 | Expired |
| US4214159A | Apparatus for analyzing samples by electromagnetic irradiation | Electricity | 44 | Expired |
| US4572842A | Method and apparatus for reactive vapor deposition of compounds of metal and semi-conductors | Chemistry; Metallurgy | 42 | Expired |
| US4757689A | Cryopump, and a method for the operation thereof | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4627989A | Method and system for a vacuum evaporative deposition process | Electricity | 41 | Expired |
| US4746417A | Magnetron sputtering cathode for vacuum coating apparatus | Electricity | 40 | Expired |
| US4534841A | Solar controlled glazing and method of producing glazing | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4820106A | Apparatus for passing workpieces into and out of a coating chamber through locks | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4765273A | Transporting device with roller systems for vacuum-coating installations | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4614093A | Method of starting and/or regenerating a cryopump and a cryopump therefor | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4362936A | Apparatus for monitoring and/or controlling plasma processes | Electricity | 30 | Expired |
| US4871434A | Process for equipment to coat tools for machining and forming techniques with mechanically resistant layers | Electricity | 30 | Expired |
| US4261808A | Vacuum coating apparatus with continuous or intermittent transport means | Chemistry; Metallurgy | 29 | Expired |
| US4184448A | Vacuum coating apparatus having a plurality of lock chambers | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4762730A | Method for producing transparent protective coatings from silicon compounds | Physics | 27 | Expired |
| US4791017A | Hard, gold-colored under layer for a gold or gold-containing surface layer and an article therewith | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4426267A | Process and apparatus for the coating of shaped articles by cathode sputtering | Chemistry; Metallurgy | 26 | Expired |
| US4779449A | Leak detector and leak detection method | Physics | 25 | Expired |
| US4572776A | Magnetron cathode for sputtering ferromagnetic targets | Electricity | 25 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.