| Subject matter | Patentable? |
|---|---|
| Perpetual motion machine | No |
| Naturally-occurring culture of microorganisms | No |
| Enriched or pure culture of microorganisms | Yes |
| Pipe bomb | No |
| Word-processing application stored on a disk | Yes |
| Song stored on a disk | No |
| Genetically-engineered mouse | Yes |
| Genetically-engineered human | No |
| A new use for aspirin | Yes |
| Medical or surgical procedure | Yes, but |