I-TEK, Inc.
176Patents
0Active
176Granted
42Portfolio score
Filing activity: Jan 16, 1967 → Nov 27, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4578810A | System for printed circuit board defect detection | Physics | 101 | Expired |
| US4457625A | Self calibrating contour measuring system using fringe counting interferometers | Physics | 90 | Expired |
| US4307945A | Progressively varying focal power opthalmic lens | Physics | 87 | Expired |
| US4503336A | Beam former having variable delays between LED output signals | Physics | 78 | Expired |
| US6485446B1 | Protective apparel comprising an energy impact absorbing polymeric material and method for shaping said material | Human Necessities | 74 | Expired |
| US3986255A | Process for electrically interconnecting chips with substrates employing gold alloy bumps and magnetic materials therein | Emerging Cross-Sectional Technologies | 68 | Expired |
| US4424435A | Low expansion laser welding arrangement | Performing Operations; Transporting | 64 | Expired |
| US4518854A | Combined shearing interferometer and Hartmann wavefront sensor | Physics | 57 | Expired |
| US3947113A | Electrophotographic toner transfer apparatus | Physics | 56 | Expired |
| US4655563A | Variable thickness deformable mirror | Physics | 56 | Expired |
| US4500202A | Printed circuit board defect detection of detecting maximum line width violations | Physics | 55 | Expired |
| US3953115A | Method for providing an abrasion resistant coating for plastic ophthalmic lenses and the resulting lenses | Emerging Cross-Sectional Technologies | 51 | Expired |
| US4336478A | Method of extending the life of a cathode ray tube | Electricity | 50 | Expired |
| US4680628A | Realtime digital diagnostic image processing system | Physics | 48 | Expired |
| US3988068A | Method and apparatus for detecting cosmetic defects in opthalmic lenses | Physics | 48 | Expired |
| US4531160A | Display processor system and method | Physics | 47 | Expired |
| US4580894A | Apparatus for measuring velocity of a moving image or object | Physics | 47 | Expired |
| US4113378A | Linear exposure control system | Physics | 46 | Expired |
| US4006271A | Abrasion resistant coating for polycarbonate substrates | Emerging Cross-Sectional Technologies | 42 | Expired |
| US4012744A | Helix-loaded spiral antenna | Electricity | 41 | Expired |
| US4657358A | Cooled deformable mirror | Physics | 32 | Expired |
| US4621329A | Star catalog navigation system | Physics | 31 | Expired |
| US4240707A | All-reflective three element objective | Physics | 31 | Expired |
| US4404594A | Imaging system with enlarged depth of field | Electricity | 29 | Expired |
| US4217036A | Acoustic-optic coherent modulator and detection system | Physics | 26 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.