API CORPORATION
54Patents
44Active
54Granted
51Portfolio score
Filing activity: Oct 24, 1988 → Sep 7, 2023 · 8 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD808895S1 | Tire | General | 20 | Active |
| US5368165A | Bag pack dispenser system | Performing Operations; Transporting | 11 | Expired |
| US6106867A | Gelatinized propolis food products | Human Necessities | 7 | Expired |
| US8492308B2 | Thermosensitive recording medium | Performing Operations; Transporting | 7 | Active |
| US4894262A | Lumber end sealing machine | Performing Operations; Transporting | 6 | Expired |
| US9731740B1 | Cart for loading heavy equipment into a vehicle | Performing Operations; Transporting | 5 | Active |
| US11643386B2 | High purity 2-naphthylacetonitrile and method for producing same | Chemistry; Metallurgy | 4 | Active |
| US7141359B2 | Developers for thermal recording materials and thermal recording materials | Chemistry; Metallurgy | 4 | Expired |
| US9029107B2 | Hydrolase protein | Emerging Cross-Sectional Technologies | 4 | Active |
| US7073819B2 | Device for individual protection, comprising an airbag | Performing Operations; Transporting | 4 | Expired |
| US8420847B2 | Bis-phosphate compound and asymmetric reaction using the same | Chemistry; Metallurgy | 3 | Active |
| US11897844B2 | Method for producing amino acid derivatives | Emerging Cross-Sectional Technologies | 2 | Active |
| US7553481B2 | Underwater antifouling coating composition with excellent storage stability | Chemistry; Metallurgy | 2 | Expired |
| US9061991B2 | Method for producing 1-amino-1-alkoxycarbonyl-2-vinylcyclopropane | Chemistry; Metallurgy | 2 | Active |
| US7902282B2 | Pressure-sensitive adhesive containing near infrared absorbing coloring matter | Chemistry; Metallurgy | 2 | Active |
| US9624181B2 | Method for producing biaryl compound | Chemistry; Metallurgy | 2 | Active |
| US6544440B1 | Coated bis(2-pyridinethiol-1-oxide) copper salt | Human Necessities | 2 | Expired |
| US9969988B2 | Pipecolinic acid 4-hydroxylase and method for producing 4-hydroxy amino acid using same | Chemistry; Metallurgy | 1 | Active |
| US10954539B2 | Method for producing hydroxy-L-pipecolic acid | Chemistry; Metallurgy | 1 | Active |
| US10087473B2 | Method for manufacturing cis-5-hydroxy-L-pipecolic acid | Chemistry; Metallurgy | 1 | Active |
| US10676441B2 | Method for producing pitavastatin calcium | Chemistry; Metallurgy | 1 | Active |
| US11136560B2 | Pipecolinic acid 4-hydroxylase and method for producing 4-hydroxy amino acid using same | Chemistry; Metallurgy | 0 | Active |
| US9988351B2 | Method for producing 5-hydroxypiperidine-2-carboxylic acid | Emerging Cross-Sectional Technologies | 0 | Active |
| US11591577B2 | Method for producing hydroxy-L-pipecolic acid | Chemistry; Metallurgy | 0 | Active |
| US11572551B2 | Hydrolase and method for producing (1S,2S)-1-alkoxycarbonyl-2-vinylcyclopropane carboxylic acid using same | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.