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| Number | Title | Issue Date |
| 5141110 | Method for sorting plastic articles A method of sorting a mixed group of plastic articles, such as PET and PVC containers, involves individually subjecting each article to a beam of electromagnetic radiation, and detecting a change in the intensity of the beam. The measured intensity varies... | 08/25/1992 |
| 4633492 | Plasma pinch X-ray method A method is provided for producing plasma pinch X-rays usable in X-ray lithography. Ionized heated plasma is repeatably generated in a first area directly from solid material without exploding the latter. X-rays are generated in a second area by passing h... | 12/30/1986 |
| 4618971 | X-ray lithography system A system is provided for producing plasma pinch X-rays usable in X-ray lithography. Ionized heated plasma is repeatably generated in a first area directly from solid material without exploding the latter. X-rays are generated in a second area by passing h... | 10/21/1986 |
| 4536884 | Plasma pinch X-ray apparatus A system is provided for producing plasma pinch X-rays usable in X-ray lithography. Ionized heated plasma is repeatably generated in a first area directly from solid material without exploding the latter. X-rays are generated in a second area by passing h... | 08/20/1985 |
| 4504964 | Laser beam plasma pinch X-ray system A system is provided for producing plasma pinch X-rays usable in X-ray lithography. Ionized heated plasma vapor is repeatably generated directly from solid material by impingement of a plurality of circumferentially spaced laser beams to generate an annul... | 03/12/1985 |
