Search

Jay C. Chang

Examiner (ID: 17046, Phone: (571)272-6132 , Office: P/2895 )

Most Active Art Unit
2895
Art Unit(s)
2895, 2817
Total Applications
698
Issued Applications
528
Pending Applications
84
Abandoned Applications
100

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 1023400 [patent_doc_number] => 06884052 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2005-04-26 [patent_title] => 'Airway airtight structure of pneumatic tool' [patent_app_type] => utility [patent_app_number] => 10/717585 [patent_app_country] => US [patent_app_date] => 2003-11-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 1246 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/884/06884052.pdf [firstpage_image] =>[orig_patent_app_number] => 10717585 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/717585
Airway airtight structure of pneumatic tool Nov 20, 2003 Issued
Array ( [id] => 7393066 [patent_doc_number] => 20040103654 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-06-03 [patent_title] => 'Regeneration of diesel particulate filter' [patent_app_type] => new [patent_app_number] => 10/694011 [patent_app_country] => US [patent_app_date] => 2003-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 6938 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0103/20040103654.pdf [firstpage_image] =>[orig_patent_app_number] => 10694011 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/694011
Regeneration of diesel particulate filter Oct 27, 2003 Issued
Array ( [id] => 780583 [patent_doc_number] => 06990806 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2006-01-31 [patent_title] => 'Exhaust header for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 10/653490 [patent_app_country] => US [patent_app_date] => 2003-09-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3072 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 292 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/990/06990806.pdf [firstpage_image] =>[orig_patent_app_number] => 10653490 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/653490
Exhaust header for internal combustion engine Sep 1, 2003 Issued
Array ( [id] => 7350949 [patent_doc_number] => 20040089254 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-05-13 [patent_title] => 'Cam contacting devices' [patent_app_type] => new [patent_app_number] => 10/297903 [patent_app_country] => US [patent_app_date] => 2003-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5139 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 16 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0089/20040089254.pdf [firstpage_image] =>[orig_patent_app_number] => 10297903 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/297903
Cam contacting devices Jul 6, 2003 Abandoned
Array ( [id] => 7354906 [patent_doc_number] => 20040003786 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-01-08 [patent_title] => 'Piezoelectric valve actuation' [patent_app_type] => new [patent_app_number] => 10/462194 [patent_app_country] => US [patent_app_date] => 2003-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3077 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0003/20040003786.pdf [firstpage_image] =>[orig_patent_app_number] => 10462194 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/462194
Piezoelectric valve actuation Jun 15, 2003 Abandoned
Array ( [id] => 6767293 [patent_doc_number] => 20030213233 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-11-20 [patent_title] => 'Air-fuel ratio control system and method for internal combustion engines' [patent_app_type] => new [patent_app_number] => 10/435053 [patent_app_country] => US [patent_app_date] => 2003-05-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 15703 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 369 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0213/20030213233.pdf [firstpage_image] =>[orig_patent_app_number] => 10435053 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/435053
Air-fuel ratio control system and method for internal combustion engines May 11, 2003 Issued
Array ( [id] => 7380622 [patent_doc_number] => 20040020207 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-02-05 [patent_title] => 'Method and apparatus for combined steam boiler/combuster and gasifier' [patent_app_type] => new [patent_app_number] => 10/430030 [patent_app_country] => US [patent_app_date] => 2003-05-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2482 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 52 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0020/20040020207.pdf [firstpage_image] =>[orig_patent_app_number] => 10430030 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/430030
Method and apparatus for combined steam boiler/combuster and gasifier May 4, 2003 Abandoned
Array ( [id] => 7358682 [patent_doc_number] => 20040216449 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-11-04 [patent_title] => 'Method for reducing engine exhaust emissions' [patent_app_type] => new [patent_app_number] => 10/426421 [patent_app_country] => US [patent_app_date] => 2003-04-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3372 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0216/20040216449.pdf [firstpage_image] =>[orig_patent_app_number] => 10426421 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/426421
Method for reducing engine exhaust emissions Apr 29, 2003 Issued
Array ( [id] => 6661420 [patent_doc_number] => 20030200746 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-10-30 [patent_title] => 'Exhaust gas purification system having particulate filter' [patent_app_type] => new [patent_app_number] => 10/420867 [patent_app_country] => US [patent_app_date] => 2003-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4813 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0200/20030200746.pdf [firstpage_image] =>[orig_patent_app_number] => 10420867 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/420867
Exhaust gas purification system having particulate filter Apr 22, 2003 Issued
Array ( [id] => 1156565 [patent_doc_number] => 06751950 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-06-22 [patent_title] => 'Emission control apparatus for engine' [patent_app_type] => B2 [patent_app_number] => 10/372264 [patent_app_country] => US [patent_app_date] => 2003-02-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 24 [patent_no_of_words] => 12819 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 326 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/751/06751950.pdf [firstpage_image] =>[orig_patent_app_number] => 10372264 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/372264
Emission control apparatus for engine Feb 24, 2003 Issued
Array ( [id] => 6881307 [patent_doc_number] => 20010047779 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2001-12-06 [patent_title] => 'Electromagnetic actuator for operating a cylinder valve of an internal-combustion engine' [patent_app_type] => new [patent_app_number] => 09/834902 [patent_app_country] => US [patent_app_date] => 2001-04-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 19 [patent_no_of_words] => 3443 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 19 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0047/20010047779.pdf [firstpage_image] =>[orig_patent_app_number] => 09834902 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/834902
Electromagnetic actuator for operating a cylinder valve of an internal combustion engine Apr 15, 2001 Issued
Array ( [id] => 6514789 [patent_doc_number] => 20020108591 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-08-15 [patent_title] => 'Variable engine valve control system' [patent_app_type] => new [patent_app_number] => 09/742200 [patent_app_country] => US [patent_app_date] => 2000-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 5943 [patent_no_of_claims] => 31 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0108/20020108591.pdf [firstpage_image] =>[orig_patent_app_number] => 09742200 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/742200
Variable engine valve control system Dec 19, 2000 Issued
Array ( [id] => 1284854 [patent_doc_number] => 06629408 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-10-07 [patent_title] => 'Exhaust emission control system for internal combustion engine' [patent_app_type] => B1 [patent_app_number] => 09/685571 [patent_app_country] => US [patent_app_date] => 2000-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 24 [patent_no_of_words] => 11717 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 265 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/629/06629408.pdf [firstpage_image] =>[orig_patent_app_number] => 09685571 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/685571
Exhaust emission control system for internal combustion engine Oct 10, 2000 Issued
Array ( [id] => 4398438 [patent_doc_number] => 06309199 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-10-30 [patent_title] => 'Assemblies for modular fluid pump' [patent_app_type] => 1 [patent_app_number] => 9/584024 [patent_app_country] => US [patent_app_date] => 2000-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 2697 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/309/06309199.pdf [firstpage_image] =>[orig_patent_app_number] => 584024 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/584024
Assemblies for modular fluid pump May 29, 2000 Issued
09/420035 ROCKER ARM DEVICE FOR SIMULTANEOUS CONTROL OF VALVE LIFT AND RELATIVE TIMING IN A COMBUSTION ENGINE Oct 17, 1999 Abandoned
Array ( [id] => 1510127 [patent_doc_number] => RE037791 [patent_country] => US [patent_kind] => E1 [patent_issue_date] => 2002-07-16 [patent_title] => 'Disk driving motor and chucking mechanism for disk drive apparatus' [patent_app_type] => E1 [patent_app_number] => 09/201429 [patent_app_country] => US [patent_app_date] => 1998-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 21 [patent_no_of_words] => 7385 [patent_no_of_claims] => 56 [patent_no_of_ind_claims] => 12 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/RE/037/RE037791.pdf [firstpage_image] =>[orig_patent_app_number] => 09201429 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/201429
Disk driving motor and chucking mechanism for disk drive apparatus Nov 29, 1998 Issued
Array ( [id] => 4162115 [patent_doc_number] => 06018944 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-02-01 [patent_title] => 'System and method for monitoring a catalytic converter using adaptable indicator threshold' [patent_app_type] => 1 [patent_app_number] => 9/174179 [patent_app_country] => US [patent_app_date] => 1998-10-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3734 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/018/06018944.pdf [firstpage_image] =>[orig_patent_app_number] => 174179 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/174179
System and method for monitoring a catalytic converter using adaptable indicator threshold Oct 15, 1998 Issued
Array ( [id] => 4069276 [patent_doc_number] => 06016737 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-01-25 [patent_title] => 'Transmission' [patent_app_type] => 1 [patent_app_number] => 9/160359 [patent_app_country] => US [patent_app_date] => 1998-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 3534 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 217 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/016/06016737.pdf [firstpage_image] =>[orig_patent_app_number] => 160359 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/160359
Transmission Sep 24, 1998 Issued
Array ( [id] => 4096922 [patent_doc_number] => 06056505 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-05-02 [patent_title] => 'Cooling circuits for trailing edge cavities in airfoils' [patent_app_type] => 1 [patent_app_number] => 9/132602 [patent_app_country] => US [patent_app_date] => 1998-08-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 10 [patent_no_of_words] => 3626 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/056/06056505.pdf [firstpage_image] =>[orig_patent_app_number] => 132602 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/132602
Cooling circuits for trailing edge cavities in airfoils Aug 10, 1998 Issued
Array ( [id] => 3904041 [patent_doc_number] => 05970706 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-10-26 [patent_title] => 'Automatic control method for corona discharge pollutant destruction' [patent_app_type] => 1 [patent_app_number] => 9/119895 [patent_app_country] => US [patent_app_date] => 1998-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3294 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/970/05970706.pdf [firstpage_image] =>[orig_patent_app_number] => 119895 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/119895
Automatic control method for corona discharge pollutant destruction Jul 20, 1998 Issued
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