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Goodwill and Intangible Assets, Net | 9 Months Ended
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Sep. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Intangible Assets, Net | Goodwill and Intangible Assets, Net Goodwill Changes in the carrying amount of goodwill were as follows:
(In thousands) |
Balance at December 31, 2021 | $ | 48,463 |
Goodwill acquired during the period (1) | 713 |
Foreign exchange effects | (241) |
Balance at September 30, 2022 | $ | 48,935 |
(1) During the nine months ended September 30, 2022, we recognized $0.7 million of goodwill related to the Qterics, Inc. ("Qterics") acquisition. Refer to Note 19 for further information about this acquisition. Intangible Assets, Net The components of intangible assets, net were as follows:
| September 30, 2022 |  | December 31, 2021
(In thousands) | Gross (1) |  | Accumulated Amortization (1) |  | Net |  | Gross (1) |  | Accumulated Amortization (1) |  | Net
Capitalized software development costs | $ | 1,538 |  |  | $ | (64) |  |  | $ | 1,474 |  |  | $ | 1,066 |  |  | $ | (27) |  |  | $ | 1,039 |
Customer relationships | 6,340 |  |  | (2,899) |  |  | 3,441 |  |  | 5,000 |  |  | (2,375) |  |  | 2,625 |
Developed and core technology | 4,520 |  |  | (3,602) |  |  | 918 |  |  | 4,080 |  |  | (3,335) |  |  | 745 |
Distribution rights | 280 |  |  | (250) |  |  | 30 |  |  | 325 |  |  | (269) |  |  | 56 |
Patents | 27,993 |  |  | (10,279) |  |  | 17,714 |  |  | 24,518 |  |  | (9,015) |  |  | 15,503 |
Trademarks and trade names | 850 |  |  | (680) |  |  | 170 |  |  | 800 |  |  | (599) |  |  | 201 |
Total intangible assets, net | $ | 41,521 |  |  | $ | (17,774) |  |  | $ | 23,747 |  |  | $ | 35,789 |  |  | $ | (15,620) |  |  | $ | 20,169 |
(1)This table excludes the gross value of fully amortized intangible assets totaling $43.8 million and $43.2 million at September 30, 2022 and December 31, 2021, respectively. Amortization expense is recorded in selling, general and administrative expenses, except amortization expense related to capitalized software development costs, which is recorded in cost of sales. Amortization expense by statement of operations caption was as follows:
(In thousands) | Three Months Ended September 30, |  | Nine Months Ended September 30,
2022 |  | 2021 |  | 2022 |  | 2021
Cost of sales | $ | 13 |  |  | $ | 7 |  |  | $ | 37 |  |  | $ | 15 |
Selling, general and administrative expenses | 1,018 |  |  | 938 |  |  | 2,928 |  |  | 2,622 |
Total amortization expense | $ | 1,031 |  |  | $ | 945 |  |  | $ | 2,965 |  |  | $ | 2,637 |
Estimated future annual amortization expense related to our intangible assets at September 30, 2022, was as follows:
(In thousands) |
2022 (remaining 3 months) | $ | 1,074 |
2023 | 4,701 |
2024 | 4,243 |
2025 | 3,308 |
2026 | 3,089 |
Thereafter | 7,332 |
Total | $ | 23,747 |

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