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] => 10671994 [patent_doc_number] => 20160018139 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-01-21 [patent_title] => 'INTEGRATION OF THERMOSIPHON TUBING INTO ACCEPT HEAT EXCHANGER' [patent_app_type] => utility [patent_app_number] => 14/817319 [patent_app_country] => US [patent_app_date] => 2015-08-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 11225 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14817319 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/817319
INTEGRATION OF THERMOSIPHON TUBING INTO ACCEPT HEAT EXCHANGER Aug 3, 2015 Abandoned
Array ( [id] => 11707584 [patent_doc_number] => 20170176083 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-06-22 [patent_title] => 'REFRIGERATOR AND CONTROL METHOD THEREOF' [patent_app_type] => utility [patent_app_number] => 15/325813 [patent_app_country] => US [patent_app_date] => 2015-07-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 22 [patent_no_of_words] => 13918 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15325813 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/325813
Refrigerator and control method thereof Jul 14, 2015 Issued
Array ( [id] => 11671286 [patent_doc_number] => 20170160007 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-06-08 [patent_title] => 'Beverage Cooler and Heater Assembly' [patent_app_type] => utility [patent_app_number] => 15/325861 [patent_app_country] => US [patent_app_date] => 2015-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 18 [patent_no_of_words] => 12972 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15325861 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/325861
Beverage cooler and heater assembly Jul 13, 2015 Issued
Array ( [id] => 15786079 [patent_doc_number] => 10626754 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-04-21 [patent_title] => Compression device [patent_app_type] => utility [patent_app_number] => 15/327098 [patent_app_country] => US [patent_app_date] => 2015-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 9842 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 198 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15327098 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/327098
Compression device Jul 5, 2015 Issued
Array ( [id] => 11758254 [patent_doc_number] => 20170205124 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-07-20 [patent_title] => 'METHOD AND APPARATUS FOR CRYOGENIC COOLING OF HTS DEVICES IMMERSED IN LIQUID CRYOGEN' [patent_app_type] => utility [patent_app_number] => 15/324617 [patent_app_country] => US [patent_app_date] => 2015-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 9673 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15324617 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/324617
Method and apparatus for cryogenic cooling of HTS devices immersed in liquid cryogen Jul 5, 2015 Issued
Array ( [id] => 11362562 [patent_doc_number] => 20170000543 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-01-05 [patent_title] => 'N2O THERMAL PRESSURIZATION SYSTEM BY COOLING' [patent_app_type] => utility [patent_app_number] => 14/790465 [patent_app_country] => US [patent_app_date] => 2015-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5042 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14790465 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/790465
N Jul 1, 2015 Issued
Array ( [id] => 10657368 [patent_doc_number] => 20160003512 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-01-07 [patent_title] => 'AIR CONDITIONER' [patent_app_type] => utility [patent_app_number] => 14/790442 [patent_app_country] => US [patent_app_date] => 2015-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5592 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14790442 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/790442
Air conditioner Jul 1, 2015 Issued
Array ( [id] => 10657360 [patent_doc_number] => 20160003505 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-01-07 [patent_title] => 'COLLAPSIBLE SOLAR REFRIGERATOR DEVICE' [patent_app_type] => utility [patent_app_number] => 14/790324 [patent_app_country] => US [patent_app_date] => 2015-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 18 [patent_no_of_words] => 7344 [patent_no_of_claims] => 32 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14790324 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/790324
COLLAPSIBLE SOLAR REFRIGERATOR DEVICE Jul 1, 2015 Abandoned
Array ( [id] => 15947495 [patent_doc_number] => 10661632 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-05-26 [patent_title] => Heat pump system for vehicle [patent_app_type] => utility [patent_app_number] => 15/305184 [patent_app_country] => US [patent_app_date] => 2015-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 7821 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 302 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15305184 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/305184
Heat pump system for vehicle Jun 29, 2015 Issued
Array ( [id] => 11537644 [patent_doc_number] => 09612042 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-04-04 [patent_title] => 'Method of operating a refrigeration system in a null cycle' [patent_app_type] => utility [patent_app_number] => 14/746414 [patent_app_country] => US [patent_app_date] => 2015-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4604 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 190 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14746414 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/746414
Method of operating a refrigeration system in a null cycle Jun 21, 2015 Issued
Array ( [id] => 11730260 [patent_doc_number] => 20170191703 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-07-06 [patent_title] => 'A PULSATION DAMPER FOR A VAPOUR COMPRESSION SYSTEM' [patent_app_type] => utility [patent_app_number] => 15/327076 [patent_app_country] => US [patent_app_date] => 2015-05-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 5722 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15327076 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/327076
Pulsation damper for a vapour compression system May 26, 2015 Issued
Array ( [id] => 10372297 [patent_doc_number] => 20150257303 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-09-10 [patent_title] => 'METHOD OF COOLING MULTIPLE PROCESSORS USING SERIES-CONNECTED HEAT SINKS' [patent_app_type] => utility [patent_app_number] => 14/721532 [patent_app_country] => US [patent_app_date] => 2015-05-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 79 [patent_figures_cnt] => 79 [patent_no_of_words] => 76760 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14721532 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/721532
METHOD OF COOLING MULTIPLE PROCESSORS USING SERIES-CONNECTED HEAT SINKS May 25, 2015 Abandoned
Array ( [id] => 16170495 [patent_doc_number] => 10712050 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-07-14 [patent_title] => Multi-stage heat engine [patent_app_type] => utility [patent_app_number] => 15/312555 [patent_app_country] => US [patent_app_date] => 2015-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 6144 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 287 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15312555 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/312555
Multi-stage heat engine May 21, 2015 Issued
Array ( [id] => 11730263 [patent_doc_number] => 20170191707 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-07-06 [patent_title] => 'SELF-DRIVING HEAT COMPRESSION-TYPE HEAT PUMP REFRIGERATING METHOD' [patent_app_type] => utility [patent_app_number] => 15/312635 [patent_app_country] => US [patent_app_date] => 2015-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 8630 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15312635 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/312635
SELF-DRIVING HEAT COMPRESSION-TYPE HEAT PUMP REFRIGERATING METHOD May 21, 2015 Abandoned
Array ( [id] => 15392911 [patent_doc_number] => 10537088 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-01-21 [patent_title] => System for storing and cooling milk, milking system, and method for cooling milk [patent_app_type] => utility [patent_app_number] => 15/312745 [patent_app_country] => US [patent_app_date] => 2015-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 6102 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 353 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15312745 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/312745
System for storing and cooling milk, milking system, and method for cooling milk May 18, 2015 Issued
Array ( [id] => 11715836 [patent_doc_number] => 20170184335 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-06-29 [patent_title] => 'REFRIGERATOR' [patent_app_type] => utility [patent_app_number] => 15/312833 [patent_app_country] => US [patent_app_date] => 2015-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 23 [patent_no_of_words] => 8257 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15312833 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/312833
Refrigerator Apr 28, 2015 Issued
Array ( [id] => 11444254 [patent_doc_number] => 20170045275 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-02-16 [patent_title] => 'HEAT EXCHANGER' [patent_app_type] => utility [patent_app_number] => 15/306599 [patent_app_country] => US [patent_app_date] => 2015-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5907 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15306599 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/306599
Heat exchanger Apr 26, 2015 Issued
Array ( [id] => 11435495 [patent_doc_number] => 20170036517 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-02-09 [patent_title] => 'HUMIDIFICATION DEVICE' [patent_app_type] => utility [patent_app_number] => 15/303892 [patent_app_country] => US [patent_app_date] => 2015-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4191 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15303892 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/303892
Humidification device Apr 23, 2015 Issued
Array ( [id] => 11444256 [patent_doc_number] => 20170045277 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-02-16 [patent_title] => 'System and Method for Injecting Oil into an Air Conditioning Circuit' [patent_app_type] => utility [patent_app_number] => 15/305777 [patent_app_country] => US [patent_app_date] => 2015-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 7375 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15305777 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/305777
System and method for injecting oil into an air conditioning circuit Apr 23, 2015 Issued
Array ( [id] => 11444249 [patent_doc_number] => 20170045270 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-02-16 [patent_title] => 'DEVICE AND METHOD FOR CONVERTING THERMAL ENERGY' [patent_app_type] => utility [patent_app_number] => 15/306049 [patent_app_country] => US [patent_app_date] => 2015-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6584 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15306049 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/306049
Device and method for converting thermal energy Apr 21, 2015 Issued
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