Bernhard Albert
39Patents
9h-index
63Co-inventors
78Inventor score
Filing activity: Feb 5, 1986 → Oct 12, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5282894A | Use of a liquid containing IR dyes as printing ink | Chemistry; Metallurgy | 106 | Expired |
| US5804447A | Use of compounds which absorb and/or fluoresce in the IR region as markers for liquids | Emerging Cross-Sectional Technologies | 40 | Expired |
| US5607762A | Ink-ribbons comprising IR-absorbing compounds | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5998211A | Use of compounds which absorb and/or fluoresce in the IR region as markers for liquids | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4946762A | Monosubstituted and disubstituted phthalocyanines | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4739053A | 2H-v-triazolo[4-5-d]pyrimidines | Physics | 15 | Expired |
| US5512095A | Naphthalocyanines | Chemistry; Metallurgy | 15 | Expired |
| US5410053A | Rhodamine derivatives | Physics | 13 | Expired |
| US4937338A | Pigments | Chemistry; Metallurgy | 13 | Expired |
| US4966798A | Optical recording medium | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4806664A | Novel tetraphenyldithiolene complexes, asymmetrically substituted benzoins, and optical recording materials containing the novel complexes | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4785088A | Pigments and their preparation | Chemistry; Metallurgy | 9 | Expired |
| US5554318A | Use of compounds which absorbs and fluoresce in the IR range as crack-detecting agents | Physics | 8 | Expired |
| US5032495A | Tetraazaporphyrins and optical recording medium | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5573585A | Molecular sieves containing azo dyes | Chemistry; Metallurgy | 8 | Expired |
| US4999026A | Transferring dyes for thermal printing: tri-cyano-vinyl aniline dyes | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4675423A | Camphordithiolene complexes | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6340745B1 | Phthalocyanine and use of phthalocyanine as a marking agent | Chemistry; Metallurgy | 6 | Expired |
| US5061596A | Silicon naphthalocyanines and thin radiation sensitive coating films containing same | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4851549A | Pigments | Chemistry; Metallurgy | 6 | Expired |
| US4917989A | Optical recording medium which has a reflector layer containing a silicon-phthalocyanine derivative | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5468596A | Photosensitive recording element and production of a relief printing plate | Physics | 4 | Expired |
| US5122435A | Amido-containing azulene squaric acid dyes, intermediates therefor and optical recording medium | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5445672A | Laked tris- or tetracationic polymethine dyes | Chemistry; Metallurgy | 4 | Expired |
| US5783694A | IR-absorbing phthalocyanines | Chemistry; Metallurgy | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.