Versar, Inc.
🏢 View company profile →14Patents
0Active
14Granted
31Portfolio score
Filing activity: May 30, 1974 → Jul 30, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4018608A | Infra red photography with silver halide films using infrared and visible light exposures | Physics | 32 | Expired |
| US4180211A | High temperature compressible support and gasket material | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4468363A | Internal mold gating method and apparatus | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4444894A | Silicon carbide and carbon structures and method of making | Chemistry; Metallurgy | 7 | Expired |
| US6823879B2 | Apparatus for cleaning pipes | Chemistry; Metallurgy | 6 | Expired |
| US5088316A | Apparatus and method for testing material samples for gas diffusion characteristics | Physics | 5 | Expired |
| US6450182B2 | Methods, compositions and apparatus for cleaning pipes | Chemistry; Metallurgy | 4 | Expired |
| US4104395A | Method for controlling diameters of microcrystalline mineral fibers | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4279618A | Method and apparatus for analysis of total atmospheric sulfuric acid content | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4229425A | Process for making hollow carbon microspheres | Chemistry; Metallurgy | 3 | Expired |
| US4075370A | Passivating metallic cuttings and turnings | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4279702A | Apparatus for making hollow carbon microspheres | Chemistry; Metallurgy | 2 | Expired |
| US4557920A | Process for making fuming nitric acid | Chemistry; Metallurgy | 1 | Expired |
| US6676768B2 | Methods, compositions and apparatus for cleaning surfaces | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.