Search

Tom Y. Chang

Examiner (ID: 2342, Phone: (571)270-5938 , Office: P/2456 )

Most Active Art Unit
2456
Art Unit(s)
2455, 2442, 2456
Total Applications
500
Issued Applications
251
Pending Applications
42
Abandoned Applications
214

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18071992 [patent_doc_number] => 11530822 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-12-20 [patent_title] => System and method for generating white noise using a packaged terminal air conditioner unit [patent_app_type] => utility [patent_app_number] => 16/568454 [patent_app_country] => US [patent_app_date] => 2019-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 5105 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 58 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16568454 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/568454
System and method for generating white noise using a packaged terminal air conditioner unit Sep 11, 2019 Issued
Array ( [id] => 15295511 [patent_doc_number] => 20190390891 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-12-26 [patent_title] => METHOD OF MANUFACTURING AN ENCLOSURE FOR A TRANSPORT REFRIGERATION UNIT, TRANSPORT REFRIGERATION UNIT AND TRANSPORT UNIT [patent_app_type] => utility [patent_app_number] => 16/565031 [patent_app_country] => US [patent_app_date] => 2019-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3859 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [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] => 16565031 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/565031
Method of manufacturing an enclosure for a transport refrigeration unit, transport refrigeration unit and transport unit Sep 8, 2019 Issued
Array ( [id] => 17169716 [patent_doc_number] => 20210323386 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-10-21 [patent_title] => HOUSING FOR A HEATING, VENTILATION AND/OR AIR CONDITIONING DEVICE OF A MOTOR VEHICLE [patent_app_type] => utility [patent_app_number] => 17/273581 [patent_app_country] => US [patent_app_date] => 2019-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5350 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17273581 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/273581
Housing for a heating, ventilation and/or air conditioning device of a motor vehicle Sep 2, 2019 Issued
Array ( [id] => 15269631 [patent_doc_number] => 20190383549 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-12-19 [patent_title] => REFRIGERATOR [patent_app_type] => utility [patent_app_number] => 16/555446 [patent_app_country] => US [patent_app_date] => 2019-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7998 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16555446 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/555446
REFRIGERATOR Aug 28, 2019 Abandoned
Array ( [id] => 17127325 [patent_doc_number] => 20210302094 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-30 [patent_title] => HYDRAULICALLY CONTROLLED CRYOPRESERVATION DEVICE [patent_app_type] => utility [patent_app_number] => 17/264942 [patent_app_country] => US [patent_app_date] => 2019-08-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5897 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 17264942 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/264942
Hydraulically controlled cryopreservation device Aug 13, 2019 Issued
Array ( [id] => 16917318 [patent_doc_number] => 20210190410 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-06-24 [patent_title] => CONDENSATION MANAGEMENT APPARATUS WITH GUTTER ASSEMBLY [patent_app_type] => utility [patent_app_number] => 17/263727 [patent_app_country] => US [patent_app_date] => 2019-08-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16205 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 17263727 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/263727
CONDENSATION MANAGEMENT APPARATUS WITH GUTTER ASSEMBLY Aug 7, 2019 Abandoned
Array ( [id] => 16573484 [patent_doc_number] => 10895401 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-01-19 [patent_title] => Movement mechanism, panel mechanism and household appliance [patent_app_type] => utility [patent_app_number] => 16/533995 [patent_app_country] => US [patent_app_date] => 2019-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 16 [patent_no_of_words] => 5290 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16533995 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/533995
Movement mechanism, panel mechanism and household appliance Aug 6, 2019 Issued
Array ( [id] => 15144315 [patent_doc_number] => 20190350635 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-11-21 [patent_title] => N2O LIQUEFACTION SYSTEM WITH SUBCOOLING HEAT EXCHANGER FOR MEDICAL DEVICE [patent_app_type] => utility [patent_app_number] => 16/529544 [patent_app_country] => US [patent_app_date] => 2019-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6072 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 381 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16529544 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/529544
N2O liquefaction system with subcooling heat exchanger for medical device Jul 31, 2019 Issued
Array ( [id] => 18872080 [patent_doc_number] => 11859872 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-01-02 [patent_title] => Variable geometry ejector for cooling applications and cooling system comprising the variable geometry ejector [patent_app_type] => utility [patent_app_number] => 17/265008 [patent_app_country] => US [patent_app_date] => 2019-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 5221 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17265008 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/265008
Variable geometry ejector for cooling applications and cooling system comprising the variable geometry ejector Jul 31, 2019 Issued
Array ( [id] => 17201087 [patent_doc_number] => 20210341182 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-04 [patent_title] => HIGH TEMPERATURE SUPERCONDUCTOR REFRIGERATION SYSTEM [patent_app_type] => utility [patent_app_number] => 17/261400 [patent_app_country] => US [patent_app_date] => 2019-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7446 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 203 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17261400 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/261400
HIGH TEMPERATURE SUPERCONDUCTOR REFRIGERATION SYSTEM Jul 23, 2019 Abandoned
Array ( [id] => 16158665 [patent_doc_number] => 20200217565 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-07-09 [patent_title] => THERMOELECTRIC COOLING DEVICES, SYSTEMS AND METHODS [patent_app_type] => utility [patent_app_number] => 16/460784 [patent_app_country] => US [patent_app_date] => 2019-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12652 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16460784 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/460784
THERMOELECTRIC COOLING DEVICES, SYSTEMS AND METHODS Jul 1, 2019 Abandoned
Array ( [id] => 19923778 [patent_doc_number] => 12298052 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-13 [patent_title] => Cryoliner [patent_app_type] => utility [patent_app_number] => 16/443373 [patent_app_country] => US [patent_app_date] => 2019-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16443373 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/443373
Cryoliner Jun 16, 2019 Issued
Array ( [id] => 15868445 [patent_doc_number] => 20200141626 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-07 [patent_title] => Refrigerated Enclosure Opening and Methods [patent_app_type] => utility [patent_app_number] => 16/443811 [patent_app_country] => US [patent_app_date] => 2019-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10576 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 36 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16443811 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/443811
Refrigerated enclosure opening and methods Jun 16, 2019 Issued
Array ( [id] => 15269957 [patent_doc_number] => 20190383713 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-12-19 [patent_title] => Test Chamber and Method [patent_app_type] => utility [patent_app_number] => 16/442719 [patent_app_country] => US [patent_app_date] => 2019-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5604 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16442719 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/442719
Test chamber and method Jun 16, 2019 Issued
Array ( [id] => 18188323 [patent_doc_number] => 11578896 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-02-14 [patent_title] => Refrigeration system [patent_app_type] => utility [patent_app_number] => 17/256355 [patent_app_country] => US [patent_app_date] => 2019-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2349 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 244 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17256355 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/256355
Refrigeration system Jun 13, 2019 Issued
Array ( [id] => 14866611 [patent_doc_number] => 20190283547 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-09-19 [patent_title] => Antimicrobial UV-C Treatment For Automotive HVAC Systems [patent_app_type] => utility [patent_app_number] => 16/434582 [patent_app_country] => US [patent_app_date] => 2019-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3065 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16434582 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/434582
Antimicrobial UV-C Treatment For Automotive HVAC Systems Jun 6, 2019 Abandoned
Array ( [id] => 16793807 [patent_doc_number] => 20210123624 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-04-29 [patent_title] => A SAFETY SYSTEM, METHOD AND COMPUTER PROGRAM PRODUCT FOR EVACUATION OF CONTAMINATED AIR AND PREVENTION OF IGNITION IN AN AIR HANDLING SYSTEM [patent_app_type] => utility [patent_app_number] => 17/254594 [patent_app_country] => US [patent_app_date] => 2019-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5278 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 17254594 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/254594
Safety system, method and computer program product for evacuation of contaminated air and prevention of ignition in an air handling system Jun 6, 2019 Issued
Array ( [id] => 17066662 [patent_doc_number] => 20210268877 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-02 [patent_title] => MULTI-TEMPERATURE TRANSPORT REFRIGERATION SYSTEM AND METHOD [patent_app_type] => utility [patent_app_number] => 17/255244 [patent_app_country] => US [patent_app_date] => 2019-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3308 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17255244 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/255244
MULTI-TEMPERATURE TRANSPORT REFRIGERATION SYSTEM AND METHOD Jun 5, 2019 Abandoned
Array ( [id] => 16933462 [patent_doc_number] => 20210199351 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-07-01 [patent_title] => SYSTEM AND METHOD FOR TRANSFERRING ENERGY [patent_app_type] => utility [patent_app_number] => 17/058480 [patent_app_country] => US [patent_app_date] => 2019-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8106 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 17058480 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/058480
SYSTEM AND METHOD FOR TRANSFERRING ENERGY Jun 4, 2019 Abandoned
Array ( [id] => 15418295 [patent_doc_number] => 20200029470 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-23 [patent_title] => DATA CENTER COOLANT SWITCH [patent_app_type] => utility [patent_app_number] => 16/418601 [patent_app_country] => US [patent_app_date] => 2019-05-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11622 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16418601 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/418601
Data center coolant switch May 20, 2019 Issued
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