{"title":"环境技术专利集中度,1980-2019","authors":"Gilson","doi":"10.18374/JIBE-21-2.4","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":53010,"journal":{"name":"International Journal of Business and Islamic Economics","volume":"8 1","pages":"29-34"},"PeriodicalIF":0.0000,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"ENVIRONMENTAL TECHNOLOGIES PATENT CONCENTRATION, 1980-2019\",\"authors\":\"Gilson\",\"doi\":\"10.18374/JIBE-21-2.4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\",\"PeriodicalId\":53010,\"journal\":{\"name\":\"International Journal of Business and Islamic Economics\",\"volume\":\"8 1\",\"pages\":\"29-34\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Business and Islamic Economics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.18374/JIBE-21-2.4\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Business and Islamic Economics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.18374/JIBE-21-2.4","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}