1/5 of Science Projects impacted by patent problems

Right to Create: Patents Chilling Science?: "Of the 40% of respondents who reported their work had been affected [by patents], 58% said their work was delayed, 50% reported they had to change the research, and 28% reported abandoning their research project. The most common reason respondents reported having to change or abandon their research project was that the acquisition of the necessary technologies involved overly complex licensing negotiations."