Search

Changhyun Yi

Examiner (ID: 10577, Phone: (571)270-7799 , Office: P/2826 )

Most Active Art Unit
2826
Art Unit(s)
2826, 2812
Total Applications
1322
Issued Applications
1144
Pending Applications
142
Abandoned Applications
68

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20078840 [patent_doc_number] => 12352901 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-08 [patent_title] => Optical device testing system [patent_app_type] => utility [patent_app_number] => 17/303421 [patent_app_country] => US [patent_app_date] => 2021-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4360 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [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] => 17303421 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/303421
Optical device testing system May 27, 2021 Issued
Array ( [id] => 17071199 [patent_doc_number] => 20210273416 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-02 [patent_title] => METHOD OF PRODUCING A LASER DIODE BAR AND LASER DIODE BAR [patent_app_type] => utility [patent_app_number] => 17/324416 [patent_app_country] => US [patent_app_date] => 2021-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4515 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17324416 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/324416
Method of producing a laser diode bar and laser diode bar May 18, 2021 Issued
Array ( [id] => 17071185 [patent_doc_number] => 20210273402 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-02 [patent_title] => BUMP BONDING STRUCTURE TO MITIGATE SPACE CONTAMINATION FOR III-V DIES AND CMOS DIES [patent_app_type] => utility [patent_app_number] => 17/321858 [patent_app_country] => US [patent_app_date] => 2021-05-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7172 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17321858 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/321858
Bump bonding structure to mitigate space contamination for III-V dies and CMOS dies May 16, 2021 Issued
Array ( [id] => 17071198 [patent_doc_number] => 20210273415 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-02 [patent_title] => METHOD OF MANUFACTURE FOR AN ULTRAVIOLET EMITTING OPTOELECTRONIC DEVICE [patent_app_type] => utility [patent_app_number] => 17/320856 [patent_app_country] => US [patent_app_date] => 2021-05-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17306 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 264 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17320856 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/320856
Method of manufacture for an ultraviolet emitting optoelectronic device May 13, 2021 Issued
Array ( [id] => 17056374 [patent_doc_number] => 20210265808 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-08-26 [patent_title] => SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SEMICONDUCTOR DEVICE [patent_app_type] => utility [patent_app_number] => 17/319678 [patent_app_country] => US [patent_app_date] => 2021-05-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9150 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17319678 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/319678
Semiconductor device and method of manufacturing the semiconductor device May 12, 2021 Issued
Array ( [id] => 19376992 [patent_doc_number] => 12068576 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-08-20 [patent_title] => Optical waveguide device and laser apparatus including the same [patent_app_type] => utility [patent_app_number] => 17/313610 [patent_app_country] => US [patent_app_date] => 2021-05-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 4161 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17313610 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/313610
Optical waveguide device and laser apparatus including the same May 5, 2021 Issued
Array ( [id] => 17011488 [patent_doc_number] => 20210242649 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-08-05 [patent_title] => LASER SYSTEM [patent_app_type] => utility [patent_app_number] => 17/237471 [patent_app_country] => US [patent_app_date] => 2021-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15864 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 169 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17237471 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/237471
Laser system Apr 21, 2021 Issued
Array ( [id] => 19812546 [patent_doc_number] => 12243959 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-04 [patent_title] => Optoelectronic semiconductor device and method of manufacturing an optoelectronic semiconductor device [patent_app_type] => utility [patent_app_number] => 17/229051 [patent_app_country] => US [patent_app_date] => 2021-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 21 [patent_no_of_words] => 6120 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17229051 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/229051
Optoelectronic semiconductor device and method of manufacturing an optoelectronic semiconductor device Apr 12, 2021 Issued
Array ( [id] => 17159419 [patent_doc_number] => 20210320470 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-10-14 [patent_title] => Fluid Edge Cladding For Spectroscopic Absorption Of Laser Emissions And Amplified Spontaneous Emission [patent_app_type] => utility [patent_app_number] => 17/225971 [patent_app_country] => US [patent_app_date] => 2021-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4645 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 19 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17225971 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/225971
Fluid edge cladding for spectroscopic absorption of laser emissions and amplified spontaneous emission Apr 7, 2021 Issued
Array ( [id] => 17145754 [patent_doc_number] => 20210313767 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-10-07 [patent_title] => LIGHT EMITTING DEVICE AND OPTICAL PART [patent_app_type] => utility [patent_app_number] => 17/222548 [patent_app_country] => US [patent_app_date] => 2021-04-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10182 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17222548 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/222548
Light emitting device and optical part Apr 4, 2021 Issued
Array ( [id] => 17159420 [patent_doc_number] => 20210320471 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-10-14 [patent_title] => LASER DRIVING DEVICE AND METHOD FOR ENABLING UNIFORM LIGHT FIELD [patent_app_type] => utility [patent_app_number] => 17/221702 [patent_app_country] => US [patent_app_date] => 2021-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3155 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 17221702 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/221702
Laser driving device and method for enabling uniform light field Apr 1, 2021 Issued
Array ( [id] => 18639910 [patent_doc_number] => 11764541 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-09-19 [patent_title] => Laser system and method for manufacturing electronic device [patent_app_type] => utility [patent_app_number] => 17/220270 [patent_app_country] => US [patent_app_date] => 2021-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 62 [patent_figures_cnt] => 77 [patent_no_of_words] => 33699 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17220270 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/220270
Laser system and method for manufacturing electronic device Mar 31, 2021 Issued
Array ( [id] => 18521042 [patent_doc_number] => 11710938 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-07-25 [patent_title] => Wavelength-selectable laser diode and optical communication apparatus including same [patent_app_type] => utility [patent_app_number] => 17/213359 [patent_app_country] => US [patent_app_date] => 2021-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 6037 [patent_no_of_claims] => 16 [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] => 17213359 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/213359
Wavelength-selectable laser diode and optical communication apparatus including same Mar 25, 2021 Issued
Array ( [id] => 18337009 [patent_doc_number] => 20230128958 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-27 [patent_title] => SINGLE-FREQUENCY LASER APPARATUS [patent_app_type] => utility [patent_app_number] => 17/912169 [patent_app_country] => US [patent_app_date] => 2021-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13172 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [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] => 17912169 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/912169
SINGLE-FREQUENCY LASER APPARATUS Mar 21, 2021 Pending
Array ( [id] => 17887202 [patent_doc_number] => 20220302680 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-22 [patent_title] => BEAM SHAPING METASURFACE [patent_app_type] => utility [patent_app_number] => 17/207142 [patent_app_country] => US [patent_app_date] => 2021-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5849 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17207142 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/207142
BEAM SHAPING METASURFACE Mar 18, 2021 Abandoned
Array ( [id] => 18326153 [patent_doc_number] => 20230124281 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-20 [patent_title] => APPARATUS AND METHOD FOR ADJUSTING THE WAVELENGTH OF LIGHT [patent_app_type] => utility [patent_app_number] => 17/911774 [patent_app_country] => US [patent_app_date] => 2021-03-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8376 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17911774 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/911774
Apparatus and method for adjusting the wavelength of light Mar 17, 2021 Issued
Array ( [id] => 18344661 [patent_doc_number] => 20230132771 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-04 [patent_title] => SURFACE-EMITTING LASER DEVICE AND DISTANCE MEASUREMENT DEVICE HAVING SAME [patent_app_type] => utility [patent_app_number] => 17/912306 [patent_app_country] => US [patent_app_date] => 2021-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12354 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17912306 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/912306
SURFACE-EMITTING LASER DEVICE AND DISTANCE MEASUREMENT DEVICE HAVING SAME Mar 16, 2021 Pending
Array ( [id] => 19038811 [patent_doc_number] => 20240088626 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-14 [patent_title] => SEMICONDUCTOR LASER DEVICE [patent_app_type] => utility [patent_app_number] => 18/262901 [patent_app_country] => US [patent_app_date] => 2021-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18778 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 401 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18262901 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/262901
SEMICONDUCTOR LASER DEVICE Mar 9, 2021 Pending
Array ( [id] => 17086041 [patent_doc_number] => 20210281048 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-09 [patent_title] => TUNABLE LASER ASSEMBLY AND METHOD OF CONTROL [patent_app_type] => utility [patent_app_number] => 17/195794 [patent_app_country] => US [patent_app_date] => 2021-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7628 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -47 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17195794 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/195794
Tunable laser assembly and method of control Mar 8, 2021 Issued
Array ( [id] => 20508135 [patent_doc_number] => 12542417 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-03 [patent_title] => Photonic device for providing light radiation comprising an optical mode in a wave guide [patent_app_type] => utility [patent_app_number] => 17/995696 [patent_app_country] => US [patent_app_date] => 2021-03-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 9 [patent_no_of_words] => 1045 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17995696 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/995696
Photonic device for providing light radiation comprising an optical mode in a wave guide Mar 7, 2021 Issued
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