Stefan Beckmann
24Patents
7h-index
28Co-inventors
69Inventor score
Filing activity: Sep 21, 1993 → Jun 8, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5384378A | Copolymers with non-linear optical properties and the use thereof | Chemistry; Metallurgy | 23 | Expired |
| US5738806A | Thienothienylazoanilines in nonlinear optics | Physics | 21 | Expired |
| US5696243A | Diphenylamine compounds, polymers prepared therefrom and non-linear optics devices containing the same | Physics | 18 | Expired |
| US5783649A | Polymerizable azo dyes with a thiophene structure | Physics | 14 | Expired |
| US5401612A | Polyesters containing nonlinear-optical chromophores, and the use thereof | Physics | 10 | Expired |
| US5549853A | Linked azo dyes | Physics | 8 | Expired |
| US5616678A | Azo dyestuff- and urethane-containing polyadduct and its use in nonlinear optics | Physics | 7 | Expired |
| US5777089A | Phenol derivatives, their preparation and their use, in particular in nonlinear optics | Physics | 7 | Expired |
| US5892046A | Methine and azamethine dyes based on trifluoromethylpyridones | Chemistry; Metallurgy | 6 | Expired |
| US5483005A | Preparation of polymers with NLO-active side groups and the use thereof | Chemistry; Metallurgy | 4 | Expired |
| US5756807A | Preparation of alkyl cyanoacetates | Chemistry; Metallurgy | 2 | Expired |
| US5502135A | Copolymers based on dicarboximides, alkenyl isocyanates and/or alkenylurethanes | Chemistry; Metallurgy | 2 | Expired |
| US6617470B1 | Method for esterifying (meth)acrylic acid with an alkanol | Chemistry; Metallurgy | 2 | Expired |
| US6086637A | Trifluormethylpyridone based indolenine methine dyes | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5756753A | Methine and azamethine dyes based on naphthoquinones in nonlinear optics | Physics | 1 | Expired |
| US8936281B2 | Press fitting for a tube | Emerging Cross-Sectional Technologies | 1 | Active |
| US5623075A | Thiazolemethine dyes | Chemistry; Metallurgy | 1 | Expired |
| US8702090B2 | Modular placement device of a feed station | Performing Operations; Transporting | 1 | Active |
| US5466812A | Preparation of N-aminopyridones | Chemistry; Metallurgy | 1 | Expired |
| US9778094B2 | Dynamic scale with multiple weighing pans | Physics | 0 | Active |
| US5811370A | Azamethine dyes | Chemistry; Metallurgy | 0 | Expired |
| US9102140B2 | Printing apparatus | Physics | 0 | Active |
| US9327508B2 | Printing apparatus | Performing Operations; Transporting | 0 | Active |
| US5714616A | Thiazolemethine dyes | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.