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Yun-feng Chang patents

Recent bibliographic sampling of Yun-feng Chang patents listed/published in the public domain by the USPTO (USPTO Patent Application #,Title):

20070238911 - Molecular sieve catalyst composition, its making and use in conversion processes
20070203385 - Method of making and process for using molecular sieve catalyst
20070197845 - Removal of catalyst fines from a reaction system
20070149836 - Method of recovering crystalline material and compositions therefrom
20070100187 - Attrition resistant molecular sieve catalyst

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The bibliographic references displayed about Yun-feng Chang's patents are for a recent sample of Yun-feng Chang's publicly published patent applications. The inventor/author may have additional bibliographic citations listed at the USPTO.gov. FreshPatents.com is not associated or affiliated in any way with the author/inventor or the United States Patent/Trademark Office but is providing this non-comprehensive sample listing for educational and research purposes using public bibliographic data published and disseminated from the United States Patent/Trademark Office public datafeed. This information is also available for free on the USPTO.gov website. If Yun-feng Chang filed recent patent applications under another name, spelling or location then those applications could be listed on an alternate page. If no bibliographic references are listed here, it is possible there are no recent filings or there is a technical issue with the listing--in that case, we recommend doing a search on the USPTO.gov website.

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Patent data source: patents published by the United States Patent and Trademark Office (USPTO)
Information published here is for research/educational purposes only (and in conjunction with our Keyword Monitor) and is not meant to be used in place of the full USPTO patent document/images or a comprehensive patent archive search. Complete official applications are on file at the USPTO and may contain additional data/images. FreshPatents.com is not affiliated with or endorsed by the USPTO or firms/individuals or products/designs/ideas related to listed patents and there may be applicable trademarks or servicemarks within the documents.

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