Search

Edward Chang

Examiner (ID: 4058, Phone: (571)270-3092 , Office: P/3696 )

Most Active Art Unit
3696
Art Unit(s)
3696, 3691, 3692
Total Applications
681
Issued Applications
410
Pending Applications
49
Abandoned Applications
239

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17169426 [patent_doc_number] => 20210323096 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-10-21 [patent_title] => METHOD AND DEVICE FOR LASER CUTTING A SHEET METAL BLANK FROM A CONTINUOUSLY CONVEYED SHEET METAL STRIP [patent_app_type] => utility [patent_app_number] => 17/274323 [patent_app_country] => US [patent_app_date] => 2019-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4745 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 17274323 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/274323
Method and device for laser cutting a sheet metal blank from a continuously conveyed sheet metal strip Oct 8, 2019 Issued
Array ( [id] => 19870003 [patent_doc_number] => 12262838 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-01 [patent_title] => Manual pressure type coffee maker [patent_app_type] => utility [patent_app_number] => 17/416992 [patent_app_country] => US [patent_app_date] => 2019-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 3226 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 211 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17416992 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/416992
Manual pressure type coffee maker Oct 7, 2019 Issued
Array ( [id] => 17203346 [patent_doc_number] => 20210343441 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-04 [patent_title] => LASER DECONTAMINATION SYSTEM [patent_app_type] => utility [patent_app_number] => 17/281024 [patent_app_country] => US [patent_app_date] => 2019-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2308 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17281024 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/281024
LASER DECONTAMINATION SYSTEM Sep 26, 2019 Abandoned
Array ( [id] => 17203346 [patent_doc_number] => 20210343441 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-04 [patent_title] => LASER DECONTAMINATION SYSTEM [patent_app_type] => utility [patent_app_number] => 17/281024 [patent_app_country] => US [patent_app_date] => 2019-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2308 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17281024 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/281024
LASER DECONTAMINATION SYSTEM Sep 26, 2019 Abandoned
Array ( [id] => 17203346 [patent_doc_number] => 20210343441 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-04 [patent_title] => LASER DECONTAMINATION SYSTEM [patent_app_type] => utility [patent_app_number] => 17/281024 [patent_app_country] => US [patent_app_date] => 2019-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2308 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17281024 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/281024
LASER DECONTAMINATION SYSTEM Sep 26, 2019 Abandoned
Array ( [id] => 17821890 [patent_doc_number] => 11426817 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-08-30 [patent_title] => Lock and fail-safe for laser welding lens [patent_app_type] => utility [patent_app_number] => 16/583892 [patent_app_country] => US [patent_app_date] => 2019-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 6059 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 169 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16583892 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/583892
Lock and fail-safe for laser welding lens Sep 25, 2019 Issued
Array ( [id] => 17452232 [patent_doc_number] => 11267069 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-03-08 [patent_title] => Recognition of components for welding and cutting torches [patent_app_type] => utility [patent_app_number] => 16/582122 [patent_app_country] => US [patent_app_date] => 2019-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 22 [patent_no_of_words] => 17018 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16582122 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/582122
Recognition of components for welding and cutting torches Sep 24, 2019 Issued
Array ( [id] => 17021424 [patent_doc_number] => 20210245295 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-08-12 [patent_title] => METHOD FOR COLLISION AVOIDANCE AND LASER MACHINING TOOL [patent_app_type] => utility [patent_app_number] => 17/275042 [patent_app_country] => US [patent_app_date] => 2019-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7396 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17275042 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/275042
Method for collision avoidance and laser machining tool Sep 22, 2019 Issued
Array ( [id] => 18116717 [patent_doc_number] => 11548090 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-01-10 [patent_title] => Welding apparatus and techniques for elevated pierce current [patent_app_type] => utility [patent_app_number] => 16/574438 [patent_app_country] => US [patent_app_date] => 2019-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3367 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16574438 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/574438
Welding apparatus and techniques for elevated pierce current Sep 17, 2019 Issued
Array ( [id] => 15645419 [patent_doc_number] => 20200085239 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-03-19 [patent_title] => Pan [patent_app_type] => utility [patent_app_number] => 16/572986 [patent_app_country] => US [patent_app_date] => 2019-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3112 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 14 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16572986 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/572986
Pan Sep 16, 2019 Abandoned
Array ( [id] => 17214220 [patent_doc_number] => 20210347557 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-11 [patent_title] => Single-Measure Filtered-Coffee Unit and Method for Production and Infusion of the Unit [patent_app_type] => utility [patent_app_number] => 17/283994 [patent_app_country] => US [patent_app_date] => 2019-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2175 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [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] => 17283994 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/283994
Single-Measure Filtered-Coffee Unit and Method for Production and Infusion of the Unit Sep 16, 2019 Abandoned
Array ( [id] => 15913817 [patent_doc_number] => 10654134 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-05-19 [patent_title] => Method for the preparation of aluminized steel sheets to be welded and then press hardened [patent_app_type] => utility [patent_app_number] => 16/569267 [patent_app_country] => US [patent_app_date] => 2019-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 10 [patent_no_of_words] => 9100 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 312 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16569267 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/569267
Method for the preparation of aluminized steel sheets to be welded and then press hardened Sep 11, 2019 Issued
Array ( [id] => 18699581 [patent_doc_number] => 11786066 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-10-17 [patent_title] => Kettle [patent_app_type] => utility [patent_app_number] => 16/566243 [patent_app_country] => US [patent_app_date] => 2019-09-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1960 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 243 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16566243 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/566243
Kettle Sep 9, 2019 Issued
Array ( [id] => 15679357 [patent_doc_number] => 20200094342 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-03-26 [patent_title] => WELDING APPARATUS AND NOZZLE DEVICE [patent_app_type] => utility [patent_app_number] => 16/562718 [patent_app_country] => US [patent_app_date] => 2019-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6044 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16562718 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/562718
Welding apparatus and nozzle device Sep 5, 2019 Issued
Array ( [id] => 19310830 [patent_doc_number] => 12036624 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-07-16 [patent_title] => Welding method and welding apparatus [patent_app_type] => utility [patent_app_number] => 16/558527 [patent_app_country] => US [patent_app_date] => 2019-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 23 [patent_no_of_words] => 12328 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 330 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16558527 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/558527
Welding method and welding apparatus Sep 2, 2019 Issued
Array ( [id] => 17978607 [patent_doc_number] => 11495479 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-11-08 [patent_title] => Light pipe window structure for thermal chamber applications and processes [patent_app_type] => utility [patent_app_number] => 16/553778 [patent_app_country] => US [patent_app_date] => 2019-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 9176 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16553778 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/553778
Light pipe window structure for thermal chamber applications and processes Aug 27, 2019 Issued
Array ( [id] => 15523717 [patent_doc_number] => 20200054164 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-02-20 [patent_title] => Automatic Beverage Maker Reservoir Heating System [patent_app_type] => utility [patent_app_number] => 16/553288 [patent_app_country] => US [patent_app_date] => 2019-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2510 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 241 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16553288 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/553288
Automatic beverage maker reservoir heating system Aug 27, 2019 Issued
Array ( [id] => 17349640 [patent_doc_number] => 11224255 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-01-18 [patent_title] => Electrically heated aerosol generating system and method [patent_app_type] => utility [patent_app_number] => 16/552394 [patent_app_country] => US [patent_app_date] => 2019-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5914 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 224 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16552394 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/552394
Electrically heated aerosol generating system and method Aug 26, 2019 Issued
Array ( [id] => 17155343 [patent_doc_number] => 20210316394 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-10-14 [patent_title] => Laser Cutter and Safe Power System Therefor [patent_app_type] => utility [patent_app_number] => 17/269804 [patent_app_country] => US [patent_app_date] => 2019-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8046 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17269804 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/269804
Laser Cutter and Safe Power System Therefor Aug 22, 2019 Abandoned
Array ( [id] => 19637665 [patent_doc_number] => 12168262 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-17 [patent_title] => Joint structure, semiconductor device, and joining method [patent_app_type] => utility [patent_app_number] => 17/267595 [patent_app_country] => US [patent_app_date] => 2019-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 32 [patent_no_of_words] => 16752 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17267595 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/267595
Joint structure, semiconductor device, and joining method Aug 22, 2019 Issued
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