Ching Chang

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Array ( [id] => 14392001 [patent_doc_number] => 10309273 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-06-04 [patent_title] => Variable valve duration/variable valve lift system and engine provided with the same [patent_app_type] => utility [patent_app_number] => 15/266912 [patent_app_country] => US [patent_app_date] => 2016-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 5092 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15266912 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 13238031 [patent_doc_number] => 10132209 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-11-20 [patent_title] => Continuous variable valve duration apparatus and engine provided with the same [patent_app_type] => utility [patent_app_number] => 15/264671 [patent_app_country] => US [patent_app_date] => 2016-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 4841 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 219 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15264671 [rel_patent_id] =>[rel_patent_doc_number] =>)

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