Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets

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Intangible Assets
9 Months Ended
Sep. 29, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets Intangible Assets
The following table summarizes acquired intangible assets as follows: 
September 29, 2018 December 31, 2017
(In thousands)
Weighted
Average Life
Gross Carrying
Amount
Accumulated
Amortization
Gross Carrying
Amount
Accumulated
Amortization
Patents
11 years $ 2,146  $ 1,694  $ 2,146  $ 1,629 
Non-compete Agreement
4 years 10,900  3,932  10,900  1,687 
Trade Names
10 years 11,465  4,915  11,492  4,114 
Completed and Unpatented Technology
10 years 38,069  14,951  38,114  11,931 
Backlog
2 years 14,424  14,424  14,424  12,184 
Customer Relationships
15 years 137,984  36,725  137,967  30,005 
Total Intangible Assets
12 years $ 214,988  $ 76,641  $ 215,043  $ 61,550 
All acquired intangible assets other than goodwill and one trade name are being amortized. Amortization expense for acquired intangibles is summarized as follows: 
Nine Months Ended  Three Months Ended 
(In thousands)
September 29, 2018 September 30, 2017 September 29, 2018 September 30, 2017
Amortization Expense
$ 15,144  $ 8,269  $ 4,276  $ 2,929 
Amortization expense for acquired intangible assets expected for 2018 and for each of the next five years is summarized as follows:
(In thousands)
2018  $ 19,403 
2019  16,707 
2020  15,981 
2021  14,072 
2022  13,637 
2023  12,470