On May 25, 2022, the Company entered into an asset purchase agreement with Fox Labs, pursuant to which the Company acquired the exclusive right to use key trademarks and intellectual property used in the foundation of the acquired line of products.  The Company recorded the trademarks acquired as an indefinite intangible asset with an estimated fair value of $0.4 million and will assess annually for impairment. 

On August 18, 2021, the Company acquired Ballistipax®. As part of the transaction, the Company has acquired two patents with estimated fair value of $0.06 million. These patent rights have a maximum life of approximately 17 years, expiring on 2038, and are amortized on a straight-line basis over that period.

On May 12, 2021, the Company entered into an asset purchase agreement with Kore, pursuant to which the Company acquired the exclusive right to use the key patents and intellectual property underpinning the acquired suite of products. As consideration for the tangible and intangible assets included in the Kore Portfolio, the Company paid Kore $3.5 million, and incurred $0.2 in legal costs to transfer these patent rights. Of the $3.7 million consideration, $2.8 million was capitalized relating to the key patents and intellectual property acquired. These patent rights have a maximum life of 20 years, expiring on various dates beginning from January 2037 to 2038, and are amortized on a straight-line basis over a period of 15 years.

On April 13, 2018, the Company entered into a purchase and sale agreement with Andre Buys, ("Buys"), the Company's Chief Technology Officer ("CTO"), pursuant to which the Company purchased certain intellectual property relating to air and/or gas fired long guns or pistols, including pump action launchers and munitions used with such pistols and long guns, including self-stabilizing shaped or “finned” rounds. As part of the agreement, the Company acquired patents with estimated fair value of $0.9 million.  The Company paid for this transaction in cash and through issuance of common stock.   These patents rights have a maximum life of 20 years, expiring on various dates beginning from November 2033 to 2038, and are amortized on a straight-line basis over a period of 15 years.

Patent amortization expenses are recorded within operating expenses in the accompanying Condensed Consolidated Statements of Operations and Comprehensive Loss.  Total patent/trademark amortization expense for the six months ended May 31, 2022 and 2021 were $0.1 million and $0.03 million, respectively.  Total patent/trademark amortization expense for the three months ended May 31, 2022 and 2021 were $0.06 million and $0.02 million, respectively.