Richard Kopp
63Patents
13h-index
73Co-inventors
87Inventor score
Filing activity: Oct 8, 1981 → Aug 6, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5730602A | Computerized method and apparatus for teaching handwriting | Physics | 95 | Expired |
| US5810604A | Electronic book and method | Emerging Cross-Sectional Technologies | 65 | Expired |
| US5143987A | Polyurethane reactive adhesive compounds containing finely dispersed polymers | Chemistry; Metallurgy | 57 | Expired |
| US4483974A | Process for the production of stabilized polyisocyanates, the polyisocyanates so-stabilized and their use in the production of polyurethanes | Emerging Cross-Sectional Technologies | 51 | Expired |
| US4595445A | Adhesive joining of surfaces using thermosetting polyurethane urea reactive adhesive compositions | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4797320A | Composite plastic moldings and a process for their production | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4663415A | Process for the preparation of stabilized polyamines, stabilized polyamines with retarded reactivity and their use for polyurethane production | Chemistry; Metallurgy | 23 | Expired |
| US4667008A | Process for the production of solid polyisocyanates of retarded reactivity, polymer-coated, finely divided polyisocyanates and their use | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4384102A | Process for the preparation of compounds having s-triazine units and epoxide groups | Chemistry; Metallurgy | 21 | Expired |
| US5574123A | Heat curable, one-component polyurethane reactive compositions | Chemistry; Metallurgy | 20 | Expired |
| US4546165A | Process for the production of stabilized polyisocyanates of retarded reactivity and their use in the production of polyurethanes | Chemistry; Metallurgy | 19 | Expired |
| US4919878A | Process for the production of polyurethane-and/or polyurea-based moldings | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4569982A | Process for the production of polyurea-elastomers and corresponding elastomers having an idealized segment structure | Chemistry; Metallurgy | 14 | Expired |
| US4390640A | Process for the production of optionally-foamed polyurethanes | Chemistry; Metallurgy | 13 | Expired |
| US5091497A | Heat-curing polyether-polyester-polyurethane ureas | Chemistry; Metallurgy | 13 | Expired |
| US4581388A | Process for the production of urethane-modified polyisocyanate using an oxyalkylated bisphenol | Chemistry; Metallurgy | 12 | Expired |
| US4716182A | Cold setting compositions, a process for the production thereof and the use thereof for polyurethane production | Chemistry; Metallurgy | 12 | Expired |
| US4619985A | Process for the production of deactivated suspensions of finely-divided polyisocyanates in relatively high molecular weight compounds, deactivated suspensions and use thereof for the production of polyurethanes | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4945120A | Process for the production of polyurethane foams using sterically hindered aromatic diamines | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5025039A | Process for the production of molded polyurethane foams and the molded foams obtained by this process | Chemistry; Metallurgy | 11 | Expired |
| US4786655A | Process for the preparation of polyurethanes containing uretdione rings formed in the presence of a bismuth salt of an organic carboxylic acid | Chemistry; Metallurgy | 10 | Expired |
| US4757105A | Process for the production of finely divided polyisocyanates containing urea groups | Chemistry; Metallurgy | 10 | Expired |
| US4894429A | Process for the preparation of polyurethanes containing uretdione rings | Chemistry; Metallurgy | 9 | Expired |
| US4623686A | Storage stable compositions based on polyvinyl chloride plastisols and stabilized isocyanates | Chemistry; Metallurgy | 9 | Expired |
| US4520186A | Polyurethanes and polyurethane-ureas based on aromatic uret dione diamine adducts | Chemistry; Metallurgy | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.