Search

Li Wu Chang

Examiner (ID: 6681, Phone: (571)270-3809 , Office: P/2124 )

Most Active Art Unit
2124
Art Unit(s)
2124, 2129, 2142
Total Applications
875
Issued Applications
744
Pending Applications
31
Abandoned Applications
120

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17475299 [patent_doc_number] => 20220082803 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-17 [patent_title] => Optical Imaging Lens Assembly [patent_app_type] => utility [patent_app_number] => 17/411079 [patent_app_country] => US [patent_app_date] => 2021-08-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11594 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17411079 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/411079
Optical imaging lens assembly Aug 24, 2021 Issued
Array ( [id] => 17260320 [patent_doc_number] => 20210373305 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-02 [patent_title] => OPTICAL SYSTEM [patent_app_type] => utility [patent_app_number] => 17/404468 [patent_app_country] => US [patent_app_date] => 2021-08-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4778 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17404468 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/404468
Optical system Aug 16, 2021 Issued
Array ( [id] => 18196567 [patent_doc_number] => 20230050086 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-16 [patent_title] => APPARATUS THAT IMPROVES VISION [patent_app_type] => utility [patent_app_number] => 17/401136 [patent_app_country] => US [patent_app_date] => 2021-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2097 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17401136 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/401136
APPARATUS THAT IMPROVES VISION Aug 11, 2021 Abandoned
Array ( [id] => 18078975 [patent_doc_number] => 20220404587 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-22 [patent_title] => OPTICAL IMAGING LENS [patent_app_type] => utility [patent_app_number] => 17/397325 [patent_app_country] => US [patent_app_date] => 2021-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4486 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 284 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17397325 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/397325
OPTICAL IMAGING LENS Aug 8, 2021 Abandoned
Array ( [id] => 17839160 [patent_doc_number] => 20220276465 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-01 [patent_title] => IMAGING LENS [patent_app_type] => utility [patent_app_number] => 17/394030 [patent_app_country] => US [patent_app_date] => 2021-08-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11751 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17394030 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/394030
IMAGING LENS Aug 3, 2021 Abandoned
Array ( [id] => 18078974 [patent_doc_number] => 20220404586 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-22 [patent_title] => OPTICAL IMAGING LENS [patent_app_type] => utility [patent_app_number] => 17/388023 [patent_app_country] => US [patent_app_date] => 2021-07-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9412 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17388023 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/388023
Optical imaging lens Jul 28, 2021 Issued
Array ( [id] => 17397564 [patent_doc_number] => 20220039654 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-10 [patent_title] => EYE IMAGING DEVICES [patent_app_type] => utility [patent_app_number] => 17/443047 [patent_app_country] => US [patent_app_date] => 2021-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12563 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 40 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17443047 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/443047
EYE IMAGING DEVICES Jul 19, 2021 Abandoned
Array ( [id] => 19962913 [patent_doc_number] => 12332410 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-17 [patent_title] => Optical imaging system, image capturing unit and electronic device [patent_app_type] => utility [patent_app_number] => 17/359030 [patent_app_country] => US [patent_app_date] => 2021-06-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 30 [patent_figures_cnt] => 30 [patent_no_of_words] => 24160 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 325 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17359030 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/359030
Optical imaging system, image capturing unit and electronic device Jun 24, 2021 Issued
Array ( [id] => 17358264 [patent_doc_number] => 20220019060 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-20 [patent_title] => Optical Imaging Lens Assembly [patent_app_type] => utility [patent_app_number] => 17/353835 [patent_app_country] => US [patent_app_date] => 2021-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10698 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17353835 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/353835
Optical Imaging Lens Assembly Jun 21, 2021 Abandoned
Array ( [id] => 17345140 [patent_doc_number] => 20220011471 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-13 [patent_title] => AIR-GAP ENCAPSULATION OF NANOSTRUCTURED OPTICAL DEVICES [patent_app_type] => utility [patent_app_number] => 17/354667 [patent_app_country] => US [patent_app_date] => 2021-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5983 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17354667 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/354667
AIR-GAP ENCAPSULATION OF NANOSTRUCTURED OPTICAL DEVICES Jun 21, 2021 Issued
Array ( [id] => 17564649 [patent_doc_number] => 20220128798 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-28 [patent_title] => OPTICAL SYSTEM, LENS MODULE, AND ELECTRONIC DEVICE [patent_app_type] => utility [patent_app_number] => 17/354462 [patent_app_country] => US [patent_app_date] => 2021-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11228 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 201 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17354462 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/354462
OPTICAL SYSTEM, LENS MODULE, AND ELECTRONIC DEVICE Jun 21, 2021 Abandoned
Array ( [id] => 20145232 [patent_doc_number] => 12379573 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-05 [patent_title] => Zoom lens and imaging apparatus [patent_app_type] => utility [patent_app_number] => 17/344866 [patent_app_country] => US [patent_app_date] => 2021-06-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 17 [patent_no_of_words] => 5057 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 213 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17344866 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/344866
Zoom lens and imaging apparatus Jun 9, 2021 Issued
Array ( [id] => 17506823 [patent_doc_number] => 20220099926 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-31 [patent_title] => 9 Million Pixel Black Light Full-color Lens [patent_app_type] => utility [patent_app_number] => 17/342511 [patent_app_country] => US [patent_app_date] => 2021-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4922 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 675 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17342511 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/342511
9 million pixel black light full-color lens Jun 7, 2021 Issued
Array ( [id] => 17316277 [patent_doc_number] => 20210405326 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-30 [patent_title] => Lens Assembly [patent_app_type] => utility [patent_app_number] => 17/337486 [patent_app_country] => US [patent_app_date] => 2021-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11765 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17337486 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/337486
Lens assembly Jun 2, 2021 Issued
Array ( [id] => 17293736 [patent_doc_number] => 20210389575 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-16 [patent_title] => Optical Imaging Lens Assembly [patent_app_type] => utility [patent_app_number] => 17/329200 [patent_app_country] => US [patent_app_date] => 2021-05-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17055 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17329200 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/329200
Optical imaging lens assembly May 24, 2021 Issued
Array ( [id] => 17245012 [patent_doc_number] => 20210364755 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-25 [patent_title] => Optical Imaging Lens [patent_app_type] => utility [patent_app_number] => 17/314074 [patent_app_country] => US [patent_app_date] => 2021-05-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11442 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17314074 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/314074
Optical imaging lens May 6, 2021 Issued
Array ( [id] => 17128036 [patent_doc_number] => 20210302805 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-30 [patent_title] => LENS UNIT [patent_app_type] => utility [patent_app_number] => 17/211784 [patent_app_country] => US [patent_app_date] => 2021-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13976 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17211784 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/211784
Lens unit Mar 23, 2021 Issued
Array ( [id] => 17674393 [patent_doc_number] => 20220187560 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-16 [patent_title] => IMAGING LENS SYSTEM HAVING RETAINING ELEMENT AND ELECTRONIC DEVICE [patent_app_type] => utility [patent_app_number] => 17/183621 [patent_app_country] => US [patent_app_date] => 2021-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7926 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 187 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17183621 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/183621
IMAGING LENS SYSTEM HAVING RETAINING ELEMENT AND ELECTRONIC DEVICE Feb 23, 2021 Abandoned
Array ( [id] => 17793673 [patent_doc_number] => 20220252765 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-11 [patent_title] => DISPLAY ASSEMBLY, DISPLAY APPARATUS AND VR/AR DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 17/631279 [patent_app_country] => US [patent_app_date] => 2021-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10483 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17631279 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/631279
Display assembly, display apparatus and VR/AR display device Jan 20, 2021 Issued
Array ( [id] => 18255388 [patent_doc_number] => 20230082427 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-16 [patent_title] => AFOCAL ADAPTER FOR AN OPTICAL DEVICE [patent_app_type] => utility [patent_app_number] => 17/794009 [patent_app_country] => US [patent_app_date] => 2021-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4379 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17794009 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/794009
AFOCAL ADAPTER FOR AN OPTICAL DEVICE Jan 20, 2021 Abandoned
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