4. INTANGIBLE AND OTHER ASSETS	6 Months Ended
Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
4. INTANGIBLE AND OTHER ASSETS	4. INTANGIBLE AND OTHER ASSETS Patents and trademarks and other intangible assets are capitalized at their historical cost and are amortized over their estimated useful lives. As of June 30, 2021, intangible assets total $282,590, net of $120,144 of accumulated amortization. As of December 31, 2020, intangible assets total $261,726, net of $111,596 of accumulated amortization. Amortization expense for the six months ended June 30, 2021 and 2020 was $8,548 and $19,681, respectively. License and distributor rights were acquired by the Company in January 1999 and provide exclusive use distribution of polymers and polymer based products. The Company has a non-expiring term on the license and distribution rights. Accordingly, the Company annually assesses this license and distribution rights for impairment and has determined that no impairment write-down is considered necessary as of June 30, 2021.

4. INTANGIBLE AND OTHER ASSETS

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Patents and trademarks and other intangible assets are capitalized at their historical cost and are amortized over their estimated useful lives. As of June 30, 2021, intangible assets total $282,590, net of $120,144 of accumulated amortization. As of December 31, 2020, intangible assets total $261,726, net of $111,596 of accumulated amortization.

Amortization expense for the six months ended June 30, 2021 and 2020 was $8,548 and $19,681, respectively. License and distributor rights were acquired by the Company in January 1999 and provide exclusive use distribution of polymers and polymer based products. The Company has a non-expiring term on the license and distribution rights. Accordingly, the Company annually assesses this license and distribution rights for impairment and has determined that no impairment write-down is considered necessary as of June 30, 2021.