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Goodwill and Other Intangible Assets (Tables)
9 Months Ended
Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill The carrying value of Goodwill as of both September 30, 2023 and December 31, 2022 was $313.2 million and $313.8 million, respectively, as set forth in the table below:
Carrying Amount
Balance as of December 31, 2022$313,807,494 
Acquisitions— 
Divestitures— 
Impairments— 
Other(650,101)
Balance as of September 30, 2023$313,157,393 
Schedule of Intangible Assets The patents and intangible assets and related change in carrying values are set forth in the tables below:
As of September 30, 2023:
Other Intangible AssetsGrossAccumulated AmortizationNetAssumed Useful Life
Gentex Patents$39,170,904 $(27,611,804)$11,559,100 Various
Other Intangible Assets
HomeLink® Trade Names and Trademarks
$52,000,000 $— $52,000,000 Indefinite
HomeLink® Technology
180,000,000 (150,000,000)30,000,000 12 years
Existing Customer Platforms43,000,000 (43,000,000)— 10 years
Exclusive Licensing Agreement96,000,000 — 96,000,000 Indefinite
Vaporsens In-Process R&D11,000,000 — 11,000,000 Indefinite
Argil In-Process R&D6,278,132 — 6,278,132 Indefinite
Air-Craftglass In-Process R&D1,507,778 — 1,507,778 Indefinite
Guardian Trade Names1,300,000 — 1,300,000 Indefinite
Guardian In-Process R&D6,800,000 — 6,800,000 Indefinite
Total Other Intangible Assets$397,885,910 $(193,000,000)$204,885,910 
Total Patents & Other Intangible Assets$437,056,814 $(220,611,804)$216,445,010 

As of December 31, 2022:
Other Intangible Assets
Gross
Accumulated Amortization
Net
Assumed Useful Life
Gentex Patents
$40,653,851 $(27,820,383)$12,833,468 Various
Other Intangible Assets
HomeLink® Trade Names and Trademarks
$52,000,000 $— $52,000,000 Indefinite
HomeLink® Technology
180,000,000 (138,750,000)41,250,000 12 years
Existing Customer Platforms43,000,000 (39,775,000)3,225,000 10 years
Exclusive Licensing Agreement
96,000,000 — 96,000,000 Indefinite
    Vaporsens In-Process R&D11,000,000 — 11,000,000 Indefinite
    Argil In-Process R&D6,278,132 — 6,278,132 Indefinite
    Air-Craftglass In-Process R&D1,507,778 — 1,507,778 Indefinite
    Guardian Trade Names1,300,000 — 1,300,000 Indefinite
    Guardian In-Process R&D6,800,000 — 6,800,000 Indefinite
Total Other Intangible Assets$397,885,910 $(178,525,000)$219,360,910 
Total Patents & Other Intangible Assets$438,539,761 $(206,345,383)$232,194,378