Ernst Leitz Wetzlar GmbH
Ernst LeitActive Patents
0
Total Holdings
70
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| WO1983003350A1 | Auditory ossicles prosthesis and method for the fabrication… | Expired / Lapsed | 1983-03-26 | — | 0 | Details |
| EP0064278A1 | Anvil prosthesis, and process for making it | Expired / Lapsed | 1982-04-29 | — | 0 | Details |
| EP0064277A1 | External acoustic meatus prosthesis in the form of a hollow… | Expired / Lapsed | 1982-04-29 | — | 0 | Details |
| WO1982001127A1 | Prosthesis for the ossicles of the ear | Expired / Lapsed | 1980-10-01 | — | 0 | Details |
| FR2327758A1 | PROCESS FOR APPLYING BIOACTIVE SUBSTANCES TO METAL OR NON-M… | Expired / Lapsed | 1976-09-30 | — | 0 | Details |
| DE2624295A1 | Interferometer for measuring surface flatness - has totally… | Expired / Lapsed | 1976-05-31 | — | 0 | Details |
| DE2546824A1 | PROCESS FOR COATING METALLIC AND NON-METALLIC DENTURE WORKP… | Expired / Lapsed | 1975-10-18 | — | 0 | Details |
| GB1505815A | Bioactive composite material for prosthetic purposes and ma… | Expired / Lapsed | 1975-05-23 | — | 0 | Details |
| FR2297887A1 | BIOACTIVE COMPOSITE MATERIAL FOR PROSTHESIS AND ITS PREPARA… | Expired / Lapsed | 1975-05-20 | — | 0 | Details |
| FR2243915A1 | FR2243915A1 - - Google Patents | Expired / Lapsed | 1974-09-16 | — | 0 | Details |
| GB1477899A | Manufacture of therapeutically useful composite materials | Expired / Lapsed | 1974-09-10 | — | 0 | Details |
| DE2439714A1 | Display system illuminator for cameras - has artificial lig… | Expired / Lapsed | 1974-08-19 | — | 0 | Details |
| DE2434979A1 | Vitro-ceramics for bone replacements and biological filters… | Expired / Lapsed | 1974-07-18 | — | 0 | Details |
| FR2230598A1 | FR2230598A1 - - Google Patents | Expired / Lapsed | 1974-05-22 | — | 0 | Details |
| DE2346739A1 | Vitro-ceramics for bone replacements and biological filters… | Expired / Lapsed | 1973-09-17 | — | 0 | Details |
| FR2122590A1 | FR2122590A1 - - Google Patents | Expired / Lapsed | 1972-01-21 | — | 0 | Details |
| DE2060194A1 | Device for adjusting the lens on a photographic camera | Expired / Lapsed | 1970-12-08 | — | 0 | Details |
| GB1177975A | Improvements in and relating to Arrangement for Automatic F… | Expired / Lapsed | 1967-09-22 | — | 0 | Details |
| DE1096191B | Cinematographic camera with built-in exposure metering devi… | Expired / Lapsed | 1960-01-12 | — | 0 | Details |
| DE1096063B | Projector for continuously repeating demonstration of a ser… | Expired / Lapsed | 1959-03-28 | — | 0 | Details |
| DE1087366B | Extensible telescope with change of magnification | Expired / Lapsed | 1958-12-04 | — | 0 | Details |
| DE1085350B | Interferometer | Expired / Lapsed | 1957-07-02 | — | 0 | Details |
| DE1030059B | Interferometer | Expired / Lapsed | 1955-07-28 | — | 0 | Details |
| US4881897A | Tooth-root implant with long-term resistance to repetitive … | Expired / Lapsed | 1987-05-07 | 1989-11-21 | 33 | Details |
| US4402576A | Adjusting device for the stage of an optical instrument | Expired / Lapsed | 1981-07-09 | 1983-09-06 | 12 | Details |
| US4365356A | Prosthesis parts provided with a coating of a bio-active ma… | Expired / Lapsed | 1980-07-21 | 1982-12-28 | 24 | Details |
| US4233650A | Brightness control for fiber optical lamps | Expired / Lapsed | 1978-09-29 | 1980-11-11 | 6 | Details |
| US4191477A | Process and apparatus for the separate evaluation of image … | Expired / Lapsed | 1977-08-23 | 1980-03-04 | 15 | Details |
| US4168326A | Prosthesis parts provided with a coating of a bio-active ma… | Expired / Lapsed | 1976-10-18 | 1979-09-18 | 17 | Details |
| US4163150A | Process and apparatus for automatically realizing Kohler's … | Expired / Lapsed | 1977-09-28 | 1979-07-31 | 24 | Details |
| US4141032A | Method of and apparatus for the expansion of the range of t… | Expired / Lapsed | 1977-06-09 | 1979-02-20 | 16 | Details |
| US4135819A | Apparatus for measuring the aggregation rate of particles | Expired / Lapsed | 1977-01-12 | 1979-01-23 | 12 | Details |
| US4131597A | Bioactive composite material process of producing and metho… | Expired / Lapsed | 1976-01-12 | 1978-12-26 | 24 | Details |
| US4071297A | Method and apparatus for photoelectrically determining the … | Expired / Lapsed | 1976-04-05 | 1978-01-31 | 49 | Details |
| US3981736A | Biocompatible glass ceramic material | Expired / Lapsed | 1975-05-12 | 1976-09-21 | 5 | Details |
| US3922155A | Process of making biocompatible glass ceramic | Expired / Lapsed | 1974-05-21 | 1975-11-25 | 23 | Details |
| US3906220A | Optical correlator | Expired / Lapsed | 1973-11-19 | 1975-09-16 | 15 | Details |
| US3904295A | Method and apparatus for the no-contact measurement of velo… | Expired / Lapsed | 1973-07-30 | 1975-09-09 | 35 | Details |
| US3833283A | Illumination equipment for microscopes | Expired / Lapsed | 1974-01-28 | 1974-09-03 | 3 | Details |
| US3833299A | Apparatus for no-contact measurement of the velocity, the p… | Expired / Lapsed | 1972-12-12 | 1974-09-03 | 14 | Details |
| US3781110A | Optical range finding system | Expired / Lapsed | 1972-11-15 | 1973-12-25 | 23 | Details |
| US3552819A | Illuminated reticle for optical viewing instruments | Expired / Lapsed | 1967-11-06 | 1971-01-05 | 0 | Details |
| US3552857A | Optical device for the determination of the spacing of an o… | Expired / Lapsed | 1966-04-19 | 1971-01-05 | 0 | Details |
| US3529528A | Photoelectric precision camera range finder with optical ve… | Expired / Lapsed | 1967-12-04 | 1970-09-22 | 0 | Details |
| US3519363A | Apparatus for insertion into a bore to support an optical m… | Expired / Lapsed | 1968-04-11 | 1970-07-07 | 0 | Details |
| US3508834A | Photoelectric measurement system comprising movable grating | Expired / Lapsed | 1969-02-03 | 1970-04-28 | 0 | Details |
| US3502415A | Optical measuring instrument for measurements in two coordi… | Expired / Lapsed | 1966-07-07 | 1970-03-24 | 0 | Details |
| US3483626A | Distance measuring instrument | Expired / Lapsed | 1968-08-16 | 1969-12-16 | 0 | Details |
| US3464757A | Day-night optical viewing device | Expired / Lapsed | 1965-10-22 | 1969-09-02 | 0 | Details |
| US3464770A | Combined sighting mechanism and laser range finder | Expired / Lapsed | 1965-10-21 | 1969-09-02 | 0 | Details |
| US3332330A | Photocell arrangement in camera | Expired / Lapsed | 1965-08-09 | 1967-07-25 | 2 | Details |
| US3254227A | Apparatus for photoelectrically measuring the position of a… | Expired / Lapsed | 1962-08-27 | 1966-05-31 | 0 | Details |
| US3188467A | Instrument for the detection of infra-red radiation | Expired / Lapsed | 1959-10-26 | 1965-06-08 | 2 | Details |
| US3020816A | Shutter for photographic apparatus | Expired / Lapsed | 1960-02-26 | 1962-02-13 | 0 | Details |
| US2939361A | Photometric apparatus compensated for fluctuations in light… | Expired / Lapsed | 1956-05-08 | 1960-06-07 | 0 | Details |
| US2901627A | Method of and apparatus for the electronic magnification of… | Expired / Lapsed | 1954-02-17 | 1959-08-25 | 0 | Details |
| US2861498A | Apparatus for koehler illumination of phase contrast top li… | Expired / Lapsed | 1954-04-12 | 1958-11-25 | 0 | Details |
| US2817270A | Telescope objective systems | Expired / Lapsed | 1955-12-12 | 1957-12-24 | 0 | Details |
| US2673816A | Process for making monocrystal actinic screen | Expired / Lapsed | 1950-12-21 | 1954-03-30 | 2 | Details |
| US2643581A | Bayonet union for camera objective parts | Expired / Lapsed | 1951-01-18 | 1953-06-30 | 0 | Details |
| DE878720C | Procedure for checking the surface quality | Expired / Lapsed | 1940-12-08 | 1953-06-05 | 0 | Details |
| US2590725A | Microtomes | Expired / Lapsed | 1949-08-23 | 1952-03-25 | 0 | Details |
| US2559290A | Frame for optical mirrors | Expired / Lapsed | 1950-09-21 | 1951-07-03 | 0 | Details |
| US2160890A | Ventilating device for projection apparatus | Expired / Lapsed | 1938-02-05 | 1939-06-06 | 0 | Details |
| US2128394A | Microscope | Expired / Lapsed | 1937-08-27 | 1938-08-30 | 0 | Details |
| US2097762A | Microscope | Expired / Lapsed | 1934-05-23 | 1937-11-02 | 0 | Details |
| US2093282A | Focusing means for camera objectives | Expired / Lapsed | 1936-01-25 | 1937-09-14 | 0 | Details |
| US2077792A | Illuminator attachment for microscopes | Expired / Lapsed | 1932-12-30 | 1937-04-20 | 0 | Details |
| US1840448A | Illuminating device for microscopes | Expired / Lapsed | 1930-01-25 | 1932-01-12 | 0 | Details |
| US1573401A | Photographic camera | Expired / Lapsed | 1924-05-20 | 1926-02-16 | 0 | Details |