| Patents for G21K 3 - Ionising radiation filters, e.g. x-ray filters (694) |
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| 07/30/1997 | EP0786139A2 X-ray examination apparatus comprising a filter |
| 07/30/1997 | EP0786138A2 X-ray examination apparatus comprising a filter |
| 05/14/1997 | CN1149927A X-ray examination apparatus comprising collimator unit |
| 04/29/1997 | US5625665 X-ray apparatus comprising a filter |
| 03/20/1997 | DE19534292A1 Filter for X=ray beam used in diagnosis of patients |
| 02/20/1997 | WO1997003450A3 X-ray examination apparatus comprising a filter |
| 02/20/1997 | WO1997003449A3 X-ray examination apparatus comprising a filter |
| 02/12/1997 | EP0757839A1 X-ray examination apparatus comprising a collimator unit |
| 01/30/1997 | WO1997003450A2 X-ray examination apparatus comprising a filter |
| 01/30/1997 | WO1997003449A2 X-ray examination apparatus comprising a filter |
| 01/30/1997 | WO1996035372A3 A system for quantitative radiographic imaging |
| 11/14/1996 | WO1996035372A2 A system for quantitative radiographic imaging |
| 11/06/1996 | EP0740839A1 X-ray apparatus comprising a filter |
| 10/24/1996 | WO1996033370A1 Method of disposing of wastes containing organic compounds |
| 10/22/1996 | US5568533 K-filter for serial high-speed rotatography and apparatus for the rotatography |
| 09/24/1996 | US5559853 X-ray examination apparatus comprising a filter |
| 09/06/1996 | WO1996027196A1 X-ray examination apparatus comprising a collimator unit |
| 07/09/1996 | US5535250 Device for manipulating a synchrotron beam bundle |
| 06/26/1996 | EP0717875A1 X-ray examination apparatus comprising a filter |
| 06/06/1996 | WO1996017240A1 Imaging method and apparatus using penetrating radiation to obtain an object projection |
| 05/09/1996 | WO1996013734A1 X-ray spectrometer |
| 05/02/1996 | WO1996013040A1 X-ray apparatus comprising a filter |
| 02/01/1996 | DE4438361C1 X=ray spectrometer operating over a wide spectrum |
| 01/11/1996 | WO1996000967A1 X-ray examination apparatus comprising a filter |
| 03/08/1995 | EP0641544A1 K-filter for serial high-speed rotatography, and apparatus for the rotatography |
| 11/15/1994 | US5365567 K-edge filter and X-ray apparatus employing the same |
| 10/11/1994 | US5355400 Compensating filter for thorax x-ray photograph |
| 05/04/1994 | EP0595733A2 Imaging combination for detecting soft tissue anomalies |
| 02/16/1994 | CN1023849C Radiation reduction filter for use in medical diagnosis |
| 02/08/1994 | US5285490 Filter containing tellurium and/or antimony; screen positioned to receive and absorb x-rays and to emit radiation at certain frequency |
| 02/08/1994 | US5285489 Made from atleast two elements whose k-absorption edges are different; separated x-rays into two energy regions |
| 12/09/1993 | WO1993024053A1 K-filter for serial high-speed rotatography, and apparatus for the rotatography |
| 11/30/1993 | US5266183 Method for plating an x-ray mask |
| 02/11/1993 | DE4204301A1 Medicinal X=ray tube - has titanium@ window of thickness giving filtration effect within closely defined limits |
| 09/15/1992 | US5148465 X-ray examination apparatus and filter suitable for use therein |
| 08/26/1992 | EP0499975A1 X-ray apparatus employing a K-edge filter |
| 08/19/1992 | EP0148213B1 Apparatus for forming an X-ray beam compensation mask and method of compensating the X-ray image of an object. |
| 07/21/1992 | US5132997 X-ray spectroscopic analyzing apparatus |
| 07/21/1992 | US5132994 X-ray microscope |
| 06/30/1992 | US5126565 Energy filter for charged particle beam apparatus |
| 06/23/1992 | CA1304174C X-ray filtration apparatus |
| 02/25/1992 | US5091925 X-ray diagnostics installation with spatial frequency filtering |
| 02/12/1992 | EP0470299A1 Energy filter for charged particle beam apparatus |
| 10/23/1991 | EP0453027A1 X-ray examination apparatus and filter suitable for use therein |
| 10/16/1991 | EP0419518A4 X-ray lens and collimator |
| 10/08/1991 | US5056128 X-ray filtration apparatus |
| 10/02/1991 | EP0449083A1 Bow-tie X-ray filter assembly for dual energy tomography |
| 09/27/1991 | CA2034476A1 Bow-tie x-ray filter assembly for dual energy tomography |
| 09/25/1991 | EP0356488A4 Radiation reduction filter for use in medical diagnosis |
| 07/16/1991 | US5033075 Radiation reduction filter for use in medical diagnosis |
| 06/07/1991 | CA2004902A1 Structure for influencing the effect of x-ray or gamma radiation on a target sensitive to the radiation |
| 04/03/1991 | EP0419518A1 X-ray lens and collimator |
| 01/08/1991 | US4984258 Apparatus for slit radiography comprising discrete, controllable attenuation elements coacting with a slit diaphragm |
| 12/04/1990 | US4975933 Bow-tie X-ray filter assembly for dual energy tomography |
| 03/20/1990 | US4910759 Xray lens and collimator |
| 03/07/1990 | EP0356488A1 Radiation reduction filter for use in medical diagnosis |
| 11/16/1989 | WO1989011150A1 X-ray lens and collimator |
| 10/11/1989 | CN1036285A Radiation reduction filter for use in medical diagnosis |
| 08/10/1989 | WO1989007322A1 Radiation reduction filter for use in medical diagnosis |
| 05/16/1989 | US4831255 Variable-attenuation parallel detector |
| 02/14/1989 | CA1250062A1 Radiation reduction filter for use in medical diagnosis |
| 12/22/1987 | US4715056 Apparatus for slit radiography |
| 06/23/1987 | US4675893 Apparatus for slit radiography |
| 06/10/1987 | EP0224726A2 Attenuator plate for use with X-ray apparatus |
| 03/03/1987 | CA1218769A1 Energy filter for a geiger-muller tube |
| 02/03/1987 | US4641336 Filter arrangement for soft tissue |
| 11/18/1986 | CA1214285A1 Digitally controlled x-ray beam attenuation method and apparatus |
| 10/14/1986 | CA1212786A1 Radiation filter |
| 08/26/1986 | US4608511 Tin-lead alloy |
| 10/16/1985 | EP0158382A1 An apparatus for slit radiography |
| 09/18/1985 | EP0155065A2 An apparatus for slit radiography comprising discrete, controllable attenuation elements coacting with a slit diaphragm |
| 09/18/1985 | EP0155064A2 An apparatus for slit radiography |
| 07/09/1985 | US4528685 X-ray beam filter device |
| 01/29/1985 | US4497062 Digitally controlled X-ray beam attenuation method and apparatus |
| 12/20/1984 | WO1984004878A1 Digitally controlled x-ray beam attenuation method and apparatus |
| 11/21/1984 | EP0125889A1 Radiation shielding putty-like composition |
| 11/21/1984 | EP0125622A2 X-ray beam filter device |
| 07/25/1984 | EP0114083A2 Energy filter for a Geiger-Muller tube |
| 05/03/1983 | CA1145863A1 Electron accelerator for radio therapy apparatus |
| 01/04/1983 | CA1139022A1 Electron accelerator |
| 04/27/1982 | US4327293 Electron accelerator and target with collimator |
| 11/10/1981 | US4300055 Radiation filter |
| 08/25/1981 | US4286167 Multi-element X-ray equalizing filter |
| 01/07/1981 | EP0021442A1 Electron accelerator |
| 01/07/1981 | EP0021441A2 Electron accelerator for X-ray therapy |
| 10/21/1980 | CA1088221A1 Electron accelerator |
| 12/12/1978 | CA1044365A1 Adjustable antenna mount for radio receiver |
| 08/22/1978 | US4109154 X-ray beam compensation |
| 01/17/1978 | US4068852 Seal ring |
| 06/07/1977 | US4028554 Radiology |
| 04/26/1977 | US4020356 Absorption body |
| 02/01/1977 | US4006361 Of high density material selected from aluminum oxide, beryllium oxide, silicon carbide, and beryllium aluminate |
| 01/04/1977 | US4001830 Radio receiver set with rotatable antenna |
| 02/24/1976 | US3940625 Apparatus for examining objects by means of penetrating radiation |