September 30,

December 31,

(in thousands)

2024

2023

Intangible assets, gross

$

97,020

$

95,765

Less capitalized patent costs not yet subject to amortization

(3,741

)

(2,838

)

Intangible assets subject to amortization, gross

93,279

92,927

Accumulated amortization

(21,258

)

(17,975

)

Intangible assets subject to amortization, net

72,021

74,952

Total intangible assets, net

$

75,762

$

77,790