Search

Edward Chang

Examiner (ID: 4032, Phone: (571)270-3092 , Office: P/3696 )

Most Active Art Unit
3696
Art Unit(s)
3691, 3696, 3692
Total Applications
690
Issued Applications
413
Pending Applications
50
Abandoned Applications
239

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 8491805 [patent_doc_number] => 20120291212 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-11-22 [patent_title] => 'RESONANT VIBRATION-ENHANCING CLEANING ATTACHMENT FOR AN ULTRASONIC POWERED HANDLE' [patent_app_type] => utility [patent_app_number] => 13/473115 [patent_app_country] => US [patent_app_date] => 2012-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 1471 [patent_no_of_claims] => 20 [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] => 13473115 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/473115
RESONANT VIBRATION-ENHANCING CLEANING ATTACHMENT FOR AN ULTRASONIC POWERED HANDLE May 15, 2012 Abandoned
Array ( [id] => 9333009 [patent_doc_number] => 20140059791 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-03-06 [patent_title] => 'CLEANING MEMBER MOUNTING HOLDER FOR MOP AND MOP' [patent_app_type] => utility [patent_app_number] => 14/114755 [patent_app_country] => US [patent_app_date] => 2012-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4820 [patent_no_of_claims] => 16 [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] => 14114755 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/114755
CLEANING MEMBER MOUNTING HOLDER FOR MOP AND MOP Apr 30, 2012 Abandoned
Array ( [id] => 9867431 [patent_doc_number] => 08955188 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-02-17 [patent_title] => 'Sweeper drive assembly' [patent_app_type] => utility [patent_app_number] => 13/450965 [patent_app_country] => US [patent_app_date] => 2012-04-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 5158 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 216 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13450965 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/450965
Sweeper drive assembly Apr 18, 2012 Issued
Array ( [id] => 8801183 [patent_doc_number] => 08439452 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-05-14 [patent_title] => 'Paint brush with reinforced ferrule construction' [patent_app_type] => utility [patent_app_number] => 13/443078 [patent_app_country] => US [patent_app_date] => 2012-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 21 [patent_no_of_words] => 7601 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13443078 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/443078
Paint brush with reinforced ferrule construction Apr 9, 2012 Issued
Array ( [id] => 9934910 [patent_doc_number] => 08984703 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2015-03-24 [patent_title] => 'Foot deployed mop' [patent_app_type] => utility [patent_app_number] => 13/419758 [patent_app_country] => US [patent_app_date] => 2012-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 12 [patent_no_of_words] => 1783 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 248 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13419758 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/419758
Foot deployed mop Mar 13, 2012 Issued
Array ( [id] => 9030069 [patent_doc_number] => 20130232707 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-09-12 [patent_title] => 'BOOT FLOOR SCRUBBER' [patent_app_type] => utility [patent_app_number] => 13/413515 [patent_app_country] => US [patent_app_date] => 2012-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1256 [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] => 13413515 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/413515
BOOT FLOOR SCRUBBER Mar 5, 2012 Abandoned
Array ( [id] => 8260299 [patent_doc_number] => 20120159726 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-06-28 [patent_title] => 'PORTABLE HAIR/LINT ROLLER' [patent_app_type] => utility [patent_app_number] => 13/413370 [patent_app_country] => US [patent_app_date] => 2012-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 2829 [patent_no_of_claims] => 19 [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] => 13413370 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/413370
Portable hair/lint roller Mar 5, 2012 Issued
Array ( [id] => 8512396 [patent_doc_number] => 20120311804 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-12-13 [patent_title] => 'Hand-Mounted Cleaning Tool' [patent_app_type] => utility [patent_app_number] => 13/405618 [patent_app_country] => US [patent_app_date] => 2012-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2421 [patent_no_of_claims] => 27 [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] => 13405618 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/405618
Hand-Mounted Cleaning Tool Feb 26, 2012 Abandoned
Array ( [id] => 8985534 [patent_doc_number] => 20130212815 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-08-22 [patent_title] => 'GAUGE WHEEL ASSEMBLY FOR HAND HELD PORTABLE POWER TOOL' [patent_app_type] => utility [patent_app_number] => 13/402735 [patent_app_country] => US [patent_app_date] => 2012-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3054 [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] => 13402735 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/402735
GAUGE WHEEL ASSEMBLY FOR HAND HELD PORTABLE POWER TOOL Feb 21, 2012 Abandoned
Array ( [id] => 9501044 [patent_doc_number] => 08739350 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2014-06-03 [patent_title] => 'Dental implant post cleaner' [patent_app_type] => utility [patent_app_number] => 13/397165 [patent_app_country] => US [patent_app_date] => 2012-02-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 4047 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13397165 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/397165
Dental implant post cleaner Feb 14, 2012 Issued
Array ( [id] => 9333011 [patent_doc_number] => 20140059793 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-03-06 [patent_title] => 'HAIR BRUSH HAVING RETRACTABLE BRISTLES' [patent_app_type] => utility [patent_app_number] => 13/261725 [patent_app_country] => US [patent_app_date] => 2012-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1734 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 7 [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] => 13261725 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/261725
HAIR BRUSH HAVING RETRACTABLE BRISTLES Feb 13, 2012 Abandoned
Array ( [id] => 9981500 [patent_doc_number] => 09027195 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2015-05-12 [patent_title] => 'Auxiliary handle attachment for a cleaning sponge and the combined assembly' [patent_app_type] => utility [patent_app_number] => 13/371395 [patent_app_country] => US [patent_app_date] => 2012-02-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2203 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13371395 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/371395
Auxiliary handle attachment for a cleaning sponge and the combined assembly Feb 10, 2012 Issued
Array ( [id] => 8331940 [patent_doc_number] => 20120198643 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-08-09 [patent_title] => 'ORAL CARE INSTRUMENT' [patent_app_type] => utility [patent_app_number] => 13/366578 [patent_app_country] => US [patent_app_date] => 2012-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 9402 [patent_no_of_claims] => 21 [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] => 13366578 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/366578
Oral care instrument Feb 5, 2012 Issued
Array ( [id] => 8959388 [patent_doc_number] => 20130198990 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-08-08 [patent_title] => 'Floor Mat with Removable Pads' [patent_app_type] => utility [patent_app_number] => 13/366045 [patent_app_country] => US [patent_app_date] => 2012-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 3344 [patent_no_of_claims] => 15 [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] => 13366045 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/366045
Floor Mat with Removable Pads Feb 2, 2012 Abandoned
Array ( [id] => 8319971 [patent_doc_number] => 20120192377 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-08-02 [patent_title] => 'Pavement Sweeper with Improved Filter Screen System' [patent_app_type] => utility [patent_app_number] => 13/360647 [patent_app_country] => US [patent_app_date] => 2012-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2162 [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] => 13360647 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/360647
Pavement Sweeper with Improved Filter Screen System Jan 26, 2012 Abandoned
Array ( [id] => 8936080 [patent_doc_number] => 20130185877 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-07-25 [patent_title] => 'APPARATUS FOR CLEANING A SLOT' [patent_app_type] => utility [patent_app_number] => 13/357648 [patent_app_country] => US [patent_app_date] => 2012-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2865 [patent_no_of_claims] => 18 [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] => 13357648 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/357648
APPARATUS FOR CLEANING A SLOT Jan 24, 2012 Abandoned
Array ( [id] => 13079999 [patent_doc_number] => 10060059 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-08-28 [patent_title] => Cross-contamination prevention wipe [patent_app_type] => utility [patent_app_number] => 13/354118 [patent_app_country] => US [patent_app_date] => 2012-01-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2331 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13354118 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/354118
Cross-contamination prevention wipe Jan 18, 2012 Issued
Array ( [id] => 8297704 [patent_doc_number] => 20120180255 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-07-19 [patent_title] => 'DRUM TYPE VACUUM CLEANER AND ASSEMBLY METHOD OF THE SAME' [patent_app_type] => utility [patent_app_number] => 13/351794 [patent_app_country] => US [patent_app_date] => 2012-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4283 [patent_no_of_claims] => 16 [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] => 13351794 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/351794
DRUM TYPE VACUUM CLEANER AND ASSEMBLY METHOD OF THE SAME Jan 16, 2012 Abandoned
Array ( [id] => 8924317 [patent_doc_number] => 20130180077 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-07-18 [patent_title] => 'BAG COMPARTMENT FOR VACUUM CLEANER' [patent_app_type] => utility [patent_app_number] => 13/350146 [patent_app_country] => US [patent_app_date] => 2012-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 2705 [patent_no_of_claims] => 20 [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] => 13350146 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/350146
BAG COMPARTMENT FOR VACUUM CLEANER Jan 12, 2012 Abandoned
Array ( [id] => 8189898 [patent_doc_number] => 20120117750 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-05-17 [patent_title] => 'SELF-EVACUATING VACUUM DEVICE' [patent_app_type] => utility [patent_app_number] => 13/349550 [patent_app_country] => US [patent_app_date] => 2012-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3985 [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] => publications/A1/0117/20120117750.pdf [firstpage_image] =>[orig_patent_app_number] => 13349550 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/349550
Self-evacuating vacuum device Jan 11, 2012 Issued
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