Examlex
Humans are the only animals to experience sleep cycles in which REM sleep alternates with slow-wave NREM sleep.
Duration
The length of time that something lasts or continues.
Types Of Patents
Categories of patents which include utility patents for new inventions or functional improvements, design patents for ornamental designs, and plant patents for new plant varieties.
Patent Requirements
The criteria set by patent law that inventions must meet to be eligible for patent protection, including novelty, non-obviousness, and usefulness.
Certification Mark
A mark used by someone other than its owner to certify the quality, origin, or other aspects of goods or services.
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