Crown Roll Leaf, Inc.
13Patents
0Active
13Granted
33Portfolio score
Filing activity: Oct 20, 1989 → Apr 21, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5331443A | Laser engraved verification hologram and associated methods | Physics | 168 | Expired |
| US5351142A | Semi-transparent reflective layer for a phase hologram | Emerging Cross-Sectional Technologies | 70 | Expired |
| US5513019A | Semi-transparent reflective layer for a phase hologram | Physics | 52 | Expired |
| US5603259A | In-line cold foil transfer process and apparatus | Performing Operations; Transporting | 18 | Expired |
| US5585144A | Hologram with integral printed indicia | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5073221A | Apparatus and process of making magnetically readable cards | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5956164A | Two-dimensional/three dimensional graphic material and method of making same | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5695808A | Method for making transparent reflective films | Physics | 12 | Expired |
| US5834096A | Hologram with integral printed indicia | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5951769A | Method and apparatus for making high refractive index (HRI) film | Chemistry; Metallurgy | 6 | Expired |
| US5158845A | Multi-colored material using rainbow grating | Physics | 4 | Expired |
| US6461544B1 | Two-dimensional/three-dimensional graphic material and method of making same | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6194031A | Method for making high refractive index (HRI) film by adjusting the flow rate of a vaporized material | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.