TEIJIN LIMITED
1,623Patents
358Active
1,623Granted
51Portfolio score
Filing activity: Mar 9, 1970 → Jun 16, 2023 · 78 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5355283A | Ball grid array with via interconnection | Emerging Cross-Sectional Technologies | 452 | Expired |
| US4292299A | Slow-releasing medical preparation to be administered by adhering to a wet mucous surface | Human Necessities | 301 | Expired |
| US6651658B1 | Portable oxygen concentration system and method of using the same | Performing Operations; Transporting | 295 | Expired |
| US5013956A | Lining material and ultrasonic wave driven motor using lining material | Electricity | 295 | Expired |
| US5835619A | Method of processing a sectional image of a sample bone including a cortical bone portion and a cancellous bone portion | Physics | 262 | Expired |
| US4613500A | Powdery pharmaceutical composition for nasal administration | Human Necessities | 248 | Expired |
| US4226848A | Method and preparation for administration to the mucosa of the oral or nasal cavity | Human Necessities | 218 | Expired |
| US6691702B2 | Portable oxygen concentration system and method of using the same | Performing Operations; Transporting | 217 | Expired |
| US6638582B1 | Phase difference film, phase difference film composite and liquid crystal display device using the same | Physics | 162 | Expired |
| US4294829A | Powdery pharmaceutical composition and powdery preparation for application to the nasal mucosa, and method for administration thereof | Human Necessities | 140 | Expired |
| US3948666A | Support for liquid photosensitive resin | Emerging Cross-Sectional Technologies | 136 | Expired |
| US4379145A | Antitumor protein hybrid and process for the preparation thereof | Chemistry; Metallurgy | 132 | Expired |
| US6698423B1 | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator | Emerging Cross-Sectional Technologies | 131 | Expired |
| US4413877A | Selectively light-transmitting laminated structure | Emerging Cross-Sectional Technologies | 130 | Expired |
| US4250163A | Method and preparation for administration to the mucosa of the oral or nasal cavity | Human Necessities | 129 | Expired |
| US4569837A | Pharmaceutical preparation for remedy of periodontal disease and process for production thereof | Human Necessities | 127 | Expired |
| US4000239A | Process for spinning naphthalate polyester fibers | Textiles; Paper | 125 | Expired |
| US4697041A | Integrated solar cells | Emerging Cross-Sectional Technologies | 121 | Expired |
| US4493714A | Ultrathin film, process for production thereof, and use thereof for concentrating a specified gas in a gaseous mixture | Chemistry; Metallurgy | 120 | Expired |
| US6096249A | Method for molding fiber aggregate | Textiles; Paper | 118 | Expired |
| US3998988A | Conjugate fiber, fibrous material and fibrous article made therefrom and process for production thereof | Emerging Cross-Sectional Technologies | 107 | Expired |
| US6712087B2 | Rotary valve assembly for pressure swing adsorption system | Emerging Cross-Sectional Technologies | 105 | Expired |
| US5225199A | Pharmaceutical plasters | Human Necessities | 104 | Expired |
| US6681764B1 | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator | Emerging Cross-Sectional Technologies | 101 | Expired |
| US4302336A | Semipermeable composite membrane | Chemistry; Metallurgy | 101 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.