Nitto Boseki Co., Ltd.
269Patents
72Active
269Granted
46Portfolio score
Filing activity: Jul 31, 1973 → Mar 21, 2024 · 20 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5572860A | Fusible adhesive yarn | Textiles; Paper | 208 | Expired |
| US4605701A | Small-globular crosslinked monoallylamine polymer and process for producing the same | Chemistry; Metallurgy | 115 | Expired |
| US4504640A | Process for producing monoallylamine polymer | Chemistry; Metallurgy | 52 | Expired |
| US4540760A | Process for producing polymers of monoallylamine | Chemistry; Metallurgy | 45 | Expired |
| US4363878A | Alkali- and heat-resistant inorganic fiber | Chemistry; Metallurgy | 41 | Expired |
| US5217796A | Woven material of inorganic fiber and process for making the same | Emerging Cross-Sectional Technologies | 40 | Expired |
| US5153176A | Tripeptide derivatives and protease inhibitor composition comprising the same | Human Necessities | 36 | Expired |
| US6933045B2 | Heat-resistant glass fiber and process for the production thereof | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4559391A | Process for producing poly(allylamine) derivatives | Chemistry; Metallurgy | 33 | Expired |
| US5059474A | Floor covering tile | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5958808A | Low-permittivity glass fibers | Electricity | 30 | Expired |
| US4680360A | Process for producing poly(allylamine) derivatives | Chemistry; Metallurgy | 30 | Expired |
| US5168006A | Woven fabric for fiber-reinforced thermoplastic resin laminate | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5837624A | Woven glass cloth for printed wiring board and printed wiring products manufactured therefrom | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4281181A | Novel L-.gamma.-glutamyl-3-carboxy-4-hydroxyanilide and salts thereof | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4594409A | Producing sequential polyamino acid resin | Chemistry; Metallurgy | 26 | Expired |
| US4287799A | Roller apparatus for cutting glass fibers | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5619829A | Sound insulating wall and method of installing the same | Fixed Constructions | 24 | Expired |
| US5532440A | Light transmissive sound absorbing member | Fixed Constructions | 22 | Expired |
| US4840755A | Method of and apparatus for producing compacted chopped strands | Chemistry; Metallurgy | 22 | Expired |
| US5147040A | Roving package wrapper | Performing Operations; Transporting | 22 | Expired |
| US4849150A | Method of manufacturing fiber-reinforced resin pipe | Performing Operations; Transporting | 21 | Expired |
| US5854453A | Sound absorbing body, sound absorbing plate, and sound absorbing unit | Fixed Constructions | 20 | Expired |
| US5800676A | Method for manufacturing a mineral fiber panel | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4746386A | Method of producing continuous fiber reinforced bent resin pipe | Emerging Cross-Sectional Technologies | 20 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.