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] => 17755781 [patent_doc_number] => 11396062 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-07-26 [patent_title] => Laser machining system for machining a workpiece by means of a laser beam and method for controlling a laser machining system [patent_app_type] => utility [patent_app_number] => 16/790219 [patent_app_country] => US [patent_app_date] => 2020-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 9651 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16790219 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/790219
Laser machining system for machining a workpiece by means of a laser beam and method for controlling a laser machining system Feb 12, 2020 Issued
Array ( [id] => 17922014 [patent_doc_number] => 11465238 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-10-11 [patent_title] => Gas guide, laser cutting head and laser cutting machine [patent_app_type] => utility [patent_app_number] => 17/414818 [patent_app_country] => US [patent_app_date] => 2020-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 3008 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17414818 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/414818
Gas guide, laser cutting head and laser cutting machine Feb 12, 2020 Issued
Array ( [id] => 16342239 [patent_doc_number] => 20200306889 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-01 [patent_title] => LASER PROCESSING METHOD AND LASER PROCESSING APPARATUS [patent_app_type] => utility [patent_app_number] => 16/784991 [patent_app_country] => US [patent_app_date] => 2020-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6519 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16784991 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/784991
Laser processing method and laser processing apparatus Feb 6, 2020 Issued
Array ( [id] => 17594176 [patent_doc_number] => 20220143749 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-12 [patent_title] => LASER MACHINING APPARATUS, LASER MACHINING METHOD, AND PROCESSING PROGRAM CREATION DEVICE [patent_app_type] => utility [patent_app_number] => 17/429340 [patent_app_country] => US [patent_app_date] => 2020-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5885 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17429340 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/429340
Laser machining apparatus, laser machining method, and processing program creation device Feb 6, 2020 Issued
Array ( [id] => 16504263 [patent_doc_number] => 20200383519 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-12-10 [patent_title] => Pressure Sensor Overflow Interlock System for Beverage Maker [patent_app_type] => utility [patent_app_number] => 16/784979 [patent_app_country] => US [patent_app_date] => 2020-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3845 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16784979 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/784979
Pressure sensor overflow interlock system for beverage maker Feb 6, 2020 Issued
Array ( [id] => 16504262 [patent_doc_number] => 20200383518 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-12-10 [patent_title] => Differential Pressure Flow Meter for Beverage Maker [patent_app_type] => utility [patent_app_number] => 16/784922 [patent_app_country] => US [patent_app_date] => 2020-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3846 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 273 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16784922 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/784922
Differential pressure flow meter for beverage maker Feb 6, 2020 Issued
Array ( [id] => 16267864 [patent_doc_number] => 20200269351 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-08-27 [patent_title] => SUSPENSION ARM CLAMPING PROCESS CONSISTING OF TWO LASER-WELDED, FORMED PARTS [patent_app_type] => utility [patent_app_number] => 16/778187 [patent_app_country] => US [patent_app_date] => 2020-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1329 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16778187 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/778187
SUSPENSION ARM CLAMPING PROCESS CONSISTING OF TWO LASER-WELDED, FORMED PARTS Jan 30, 2020 Abandoned
Array ( [id] => 15926627 [patent_doc_number] => 20200154947 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-21 [patent_title] => PRESSURE ASSIST METHOD FOR PRESSURE FRYER [patent_app_type] => utility [patent_app_number] => 16/751583 [patent_app_country] => US [patent_app_date] => 2020-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8567 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16751583 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/751583
Pressure assist method for pressure fryer Jan 23, 2020 Issued
Array ( [id] => 15926623 [patent_doc_number] => 20200154945 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-21 [patent_title] => ROASTING AND GLAZING APPARATUS [patent_app_type] => utility [patent_app_number] => 16/748096 [patent_app_country] => US [patent_app_date] => 2020-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 20663 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16748096 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/748096
Roasting and glazing apparatus Jan 20, 2020 Issued
Array ( [id] => 19903461 [patent_doc_number] => 12280449 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-22 [patent_title] => Method and apparatus for cutting and ablating a workpiece with a complex fluid-jet-guided laser beam [patent_app_type] => utility [patent_app_number] => 17/424520 [patent_app_country] => US [patent_app_date] => 2020-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 1135 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17424520 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/424520
Method and apparatus for cutting and ablating a workpiece with a complex fluid-jet-guided laser beam Jan 20, 2020 Issued
Array ( [id] => 19535882 [patent_doc_number] => 12128416 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-29 [patent_title] => Operation aid apparatus for grain milling facility and grain milling facility [patent_app_type] => utility [patent_app_number] => 17/424025 [patent_app_country] => US [patent_app_date] => 2020-01-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2799 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 322 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17424025 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/424025
Operation aid apparatus for grain milling facility and grain milling facility Jan 14, 2020 Issued
Array ( [id] => 18019626 [patent_doc_number] => 20220371125 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-24 [patent_title] => Plasma arc-laser hybrid welding method for high-sealing aluminum alloy rectangular chamber [patent_app_type] => utility [patent_app_number] => 17/772109 [patent_app_country] => US [patent_app_date] => 2020-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2418 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 610 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17772109 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/772109
Plasma arc-laser hybrid welding method for high-sealing aluminum alloy rectangular chamber Jan 12, 2020 Issued
Array ( [id] => 15896393 [patent_doc_number] => 20200147715 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-14 [patent_title] => CONTACT TIP ROTARY LOCK OF A WELDING TORCH [patent_app_type] => utility [patent_app_number] => 16/740943 [patent_app_country] => US [patent_app_date] => 2020-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7595 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16740943 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/740943
Contact tip rotary lock of a welding torch Jan 12, 2020 Issued
Array ( [id] => 18019626 [patent_doc_number] => 20220371125 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-24 [patent_title] => Plasma arc-laser hybrid welding method for high-sealing aluminum alloy rectangular chamber [patent_app_type] => utility [patent_app_number] => 17/772109 [patent_app_country] => US [patent_app_date] => 2020-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2418 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 610 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17772109 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/772109
Plasma arc-laser hybrid welding method for high-sealing aluminum alloy rectangular chamber Jan 12, 2020 Issued
Array ( [id] => 15864151 [patent_doc_number] => 20200139479 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-07 [patent_title] => Controlling Plasma Arc Torches and Related Systems and Methods [patent_app_type] => utility [patent_app_number] => 16/737574 [patent_app_country] => US [patent_app_date] => 2020-01-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18909 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16737574 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/737574
Controlling plasma arc torches and related systems and methods Jan 7, 2020 Issued
Array ( [id] => 17479459 [patent_doc_number] => 20220086963 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-17 [patent_title] => HEATING DEVICE [patent_app_type] => utility [patent_app_number] => 17/420445 [patent_app_country] => US [patent_app_date] => 2020-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5132 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17420445 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/420445
Heating device Jan 2, 2020 Issued
Array ( [id] => 15865571 [patent_doc_number] => 20200140189 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-07 [patent_title] => CAPSULES, APPARATUS, AND METHODS FOR PREPARING A BEVERAGE [patent_app_type] => utility [patent_app_number] => 16/734054 [patent_app_country] => US [patent_app_date] => 2020-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14895 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16734054 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/734054
Capsules, apparatus, and methods for preparing a beverage Jan 2, 2020 Issued
Array ( [id] => 16191798 [patent_doc_number] => 20200232647 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-07-23 [patent_title] => TEMPERATURE CONTROL SYSTEM AND METHOD FOR GRILL [patent_app_type] => utility [patent_app_number] => 16/729394 [patent_app_country] => US [patent_app_date] => 2019-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5903 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 258 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16729394 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/729394
Temperature control system and method for grill Dec 28, 2019 Issued
Array ( [id] => 16191798 [patent_doc_number] => 20200232647 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-07-23 [patent_title] => TEMPERATURE CONTROL SYSTEM AND METHOD FOR GRILL [patent_app_type] => utility [patent_app_number] => 16/729394 [patent_app_country] => US [patent_app_date] => 2019-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5903 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 258 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16729394 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/729394
Temperature control system and method for grill Dec 28, 2019 Issued
Array ( [id] => 16106871 [patent_doc_number] => 20200205458 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-07-02 [patent_title] => Coffee Bean Temperature Detection Device and Temperature Measuring Method Thereof [patent_app_type] => utility [patent_app_number] => 16/728909 [patent_app_country] => US [patent_app_date] => 2019-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3396 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16728909 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/728909
Coffee bean temperature detection device and temperature measuring method thereof Dec 26, 2019 Issued
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