SEMPERIT AKTIENGESELLSCHAFT HOLDING
48Patents
13Active
48Granted
44Portfolio score
Filing activity: Mar 2, 1973 → Mar 2, 2017 · 6 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4266263A | Force measuring capacitor | Physics | 77 | Expired |
| US4370697A | Capacitor for measuring forces | Physics | 64 | Expired |
| US4329981A | Foot massage mat | Human Necessities | 40 | Expired |
| US4464796A | Glove formed of rubber or plastics material and mold for fabricating the same | Human Necessities | 27 | Expired |
| US4264208A | Method and apparatus for measuring the surface of an object | Physics | 27 | Expired |
| US6440498B2 | Article made of a flexible material | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6254947A | Flexible plastic articles bearing polymeric slip coatings and having raised/recessed roughness on their surfaces | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4099614A | Package for a sterilized pair of gloves and method of forming the same | Human Necessities | 23 | Expired |
| US3933565A | Method and apparatus for butt connection of plies formed of plastic deformable material, especially rubberized steel cord plies | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6673431B1 | Hand-rail | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4580608A | Pneumatic vehicle tire with radial ply carcass and tread member composed of a base layer closer to the tire axis and a cap layer arranged on top thereof | Performing Operations; Transporting | 17 | Expired |
| US4151620A | Windshield and structures formed therefrom | Performing Operations; Transporting | 16 | Expired |
| USD262156S | Walking-aid for plaster-of-paris cast | General | 15 | Expired |
| US4007556A | Foam body and process for the production thereof | Human Necessities | 13 | Expired |
| US4032275A | Device for the continuous production of a strand of foamed material | Emerging Cross-Sectional Technologies | 13 | Expired |
| US3945420A | Molded article formed of fiber reinforced material | Emerging Cross-Sectional Technologies | 10 | Expired |
| US8006823B2 | Handrail | Performing Operations; Transporting | 10 | Active |
| US7594570B2 | Belt-shaped tension element and guiding system for the handrail of an escalator or a people-mover | Performing Operations; Transporting | 10 | Active |
| US7083037B2 | Splice construction for elongate sections | Performing Operations; Transporting | 8 | Expired |
| US4262720A | Tread for a pneumatic tire | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4014969A | Method of making a molded article with oriented fiber reinforcements | Performing Operations; Transporting | 7 | Expired |
| US4372488A | Level crossing for railroads and method of fabricating the same | Fixed Constructions | 7 | Expired |
| US4030393A | Apparatus for cutting conveyed materials | Emerging Cross-Sectional Technologies | 6 | Expired |
| US3948591A | Apparatus for the bellowless vulcanization of tire blanks | Performing Operations; Transporting | 6 | Expired |
| US4181483A | Apparatus for the bellowless vulcanization of tire blanks | Emerging Cross-Sectional Technologies | 5 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.