This new type of nitrogen cooling is still under patent.

Those drugs are still under patent, so no exact generic equivalents are available.

Fraud is likely to occur only in sales of brand-name drugs still under patent.

Experts say China has begun manufacturing some anti-retroviral drugs, but only ones no longer under patent.

Because we were willing to share, rather than lock it up under patent.

All of the basic texts" in computer science "would be under patent, and that is perhaps worrisome.

Because sucralose is under patent, there are no other manufacturers.

Many are new, still under patent and owned by commercial companies or tied to certain brands.

Tamiflu is a fairly new drug, still under patent and very costly.

But the problem also concerns new drugs still under patent because most such drugs are made only by the innovating company.