You can freely build on Using Cannabinoids to Protect the Brain from Oxidative Stress

What this patent covers

This patent claims a method for treating diseases caused by oxidative stress—where unstable molecules damage cells—by using specific cannabinoids that do not bind to the NMDA receptor. Unlike traditional cannabinoids that cause a 'high,' the patent focuses on compounds like cannabidiol (CBD) that act as antioxidants to prevent neurological damage. The mechanism involves protecting the central nervous system during ischemic events, such as a stroke, or chronic conditions like Parkinson's disease. By avoiding NMDA receptor interaction, the method aims to provide neuroprotection without the psychoactive side effects or toxicity associated with other cannabis-derived compounds.

What is now free to use

All 1 claims of US 6630507 are in the public domain. Specifically:

The 1 dependent claim add narrowing limitations and are also free.

What is NOT covered

Patent expiry frees this specific invention. Separately-patented improvements made after expiry may still be protected.

• Does not cover cannabinoids that act as antagonists at the NMDA receptor.

• Does not cover treatments for conditions unrelated to oxidative stress or neurodegeneration.

• Does not claim the discovery of the cannabis plant itself, but rather a specific medical application of purified cannabinoid compounds.

• Does not cover psychoactive cannabinoids when used in a way that relies on their psychoactive properties.

Who is building on this today

Pharmaceutical companies like GW Pharmaceuticals (now part of Jazz Pharmaceuticals) have built significant clinical programs around purified CBD, directly following the path of investigating non-psychoactive cannabinoids for neurological conditions. Various academic research institutions continue to cite this work when exploring the antioxidant pathways of phytocannabinoids.

Products built on expired version of this technology

How to cite this patent in your documentation

US Department of Health and Human Services. US Patent 6630507. Cannabinoids as antioxidants and neuroprotectants. Granted 2003, expired 2019. Now in the public domain.

Note: This is a convenience citation. Consult a patent attorney for formal freedom-to-operate analysis.

PatentBrief is an educational resource and does not provide legal advice. Patent expiration information is derived from USPTO records and may not reflect continuation patents, divisional filings, or separately-patented improvements. For commercial use or production decisions, obtain a formal freedom-to-operate (FTO) opinion from a registered patent attorney.