# Patent “Evergreening”: Issues in Innovation and Competition
> **Full Report** · 2009-11-13 · `R40917`
## Report
- **CRS ID:** R40917
- **Series:** Full Report
- **Publication date:** 2009-11-13
## Documents
- [PDF](https://www.everycrsreport.com/files/20091113_R40917_9536d486c1db2b54f1f4621cef2e664d693472f2.pdf)
- [HTML](https://www.everycrsreport.com/files/20091113_R40917_97e1cb3a32427d6c639ad204546f3fd7d597a72c.html)
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