We started out with three each of three different types of plants: one member of each set was given water that had been boiled on a gas stove, water that had been boiled in a microwave oven, or water that had not been boiled at all.
Drug patent protection: How long is long enough? A recent Senate committee hearing on Bill S-17, Parliament's effort to comply with international trade rules by extending pharmaceutical patent protection to 20 years, inadvertently opened the door to a broader investigation of the inner workings of the country's pharmaceutical patent legislation.
Where it exists, the term of protection for a design patent may differ from that of a utility patent. In the US. the term for a utility patent is 20 years from the earliest US filing date relied upon by the applicant, while the. term for a design patent is 14 years from the date of the patent grant.