Search

Calvin Ma

Examiner (ID: 9615, Phone: (571)270-1713 , Office: P/2693 )

Most Active Art Unit
2693
Art Unit(s)
2621, 2693, 2629
Total Applications
953
Issued Applications
713
Pending Applications
61
Abandoned Applications
202

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 13731185 [patent_doc_number] => 20180370060 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-12-27 [patent_title] => ROTARY CUTTER WITH KNIFE HOLDER [patent_app_type] => utility [patent_app_number] => 15/985084 [patent_app_country] => US [patent_app_date] => 2018-05-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5302 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [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] => 15985084 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/985084
ROTARY CUTTER WITH KNIFE HOLDER May 20, 2018 Abandoned
Array ( [id] => 13584491 [patent_doc_number] => 20180343794 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-12-06 [patent_title] => ADJUSTABLE FIELD TRIMMER [patent_app_type] => utility [patent_app_number] => 15/985375 [patent_app_country] => US [patent_app_date] => 2018-05-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3272 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 50 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15985375 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/985375
ADJUSTABLE FIELD TRIMMER May 20, 2018 Abandoned
Array ( [id] => 15143423 [patent_doc_number] => 20190350189 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-11-21 [patent_title] => VEGETATION SAW ASSEMBLY [patent_app_type] => utility [patent_app_number] => 15/985219 [patent_app_country] => US [patent_app_date] => 2018-05-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1430 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15985219 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/985219
VEGETATION SAW ASSEMBLY May 20, 2018 Abandoned
Array ( [id] => 15929277 [patent_doc_number] => 20200156272 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-21 [patent_title] => METHOD AND APPARATUS FOR PROVIDING FEEDBACK REGARDING MOTION OF A ROTARY SHAVER PERFORMED BY A USER [patent_app_type] => utility [patent_app_number] => 16/611258 [patent_app_country] => US [patent_app_date] => 2018-05-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8949 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 187 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16611258 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/611258
Method and apparatus for providing feedback regarding motion of a rotary shaver performed by a user May 10, 2018 Issued
Array ( [id] => 13520597 [patent_doc_number] => 20180311841 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-11-01 [patent_title] => ELECTRIC APPLIANCE FOR PERSONAL CARE [patent_app_type] => utility [patent_app_number] => 15/950597 [patent_app_country] => US [patent_app_date] => 2018-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10286 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15950597 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/950597
Electric appliance for personal care Apr 10, 2018 Issued
Array ( [id] => 17696429 [patent_doc_number] => 11370134 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-06-28 [patent_title] => Stationary blade, blade set, and manufacturing method [patent_app_type] => utility [patent_app_number] => 16/603598 [patent_app_country] => US [patent_app_date] => 2018-04-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 22 [patent_no_of_words] => 8885 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16603598 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/603598
Stationary blade, blade set, and manufacturing method Apr 8, 2018 Issued
Array ( [id] => 13477569 [patent_doc_number] => 20180290327 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-10-11 [patent_title] => PORTABLE MACHINING DEVICE [patent_app_type] => utility [patent_app_number] => 15/921108 [patent_app_country] => US [patent_app_date] => 2018-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13861 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15921108 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/921108
Portable machining device Mar 13, 2018 Issued
Array ( [id] => 15452551 [patent_doc_number] => 20200039099 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-02-06 [patent_title] => SHAVER HANDLE AND METHOD OF MANUFACTURING [patent_app_type] => utility [patent_app_number] => 16/492357 [patent_app_country] => US [patent_app_date] => 2018-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3402 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 49 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16492357 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/492357
SHAVER HANDLE AND METHOD OF MANUFACTURING Mar 8, 2018 Abandoned
Array ( [id] => 14831833 [patent_doc_number] => 20190274317 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-09-12 [patent_title] => Cutting device for soft-cut foods [patent_app_type] => utility [patent_app_number] => 15/932508 [patent_app_country] => US [patent_app_date] => 2018-03-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3002 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 225 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15932508 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/932508
Cutting device for soft-cut foods Mar 7, 2018 Abandoned
Array ( [id] => 13426253 [patent_doc_number] => 20180264669 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-09-20 [patent_title] => Safety Razor with Visually Identifiable Blade [patent_app_type] => utility [patent_app_number] => 15/915532 [patent_app_country] => US [patent_app_date] => 2018-03-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4417 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15915532 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/915532
Safety Razor with Visually Identifiable Blade Mar 7, 2018 Abandoned
Array ( [id] => 14807201 [patent_doc_number] => 20190270210 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-09-05 [patent_title] => PRECISION RAZOR WITH LOW COST ASSEMBLY [patent_app_type] => utility [patent_app_number] => 15/909816 [patent_app_country] => US [patent_app_date] => 2018-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3715 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 15909816 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/909816
Precision razor with low cost assembly Feb 28, 2018 Issued
Array ( [id] => 17059361 [patent_doc_number] => 11103943 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-08-31 [patent_title] => Blade extension and extended reach reciprocating saw with blade extension [patent_app_type] => utility [patent_app_number] => 15/890236 [patent_app_country] => US [patent_app_date] => 2018-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2602 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [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] => 15890236 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/890236
Blade extension and extended reach reciprocating saw with blade extension Feb 5, 2018 Issued
Array ( [id] => 13312581 [patent_doc_number] => 20180207827 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-26 [patent_title] => KNIFE AND SHEATH ASSEMBLY [patent_app_type] => utility [patent_app_number] => 15/880102 [patent_app_country] => US [patent_app_date] => 2018-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1702 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15880102 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/880102
KNIFE AND SHEATH ASSEMBLY Jan 24, 2018 Abandoned
Array ( [id] => 15085879 [patent_doc_number] => 20190337750 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-11-07 [patent_title] => STACKING MACHINE FOR HANDLING INDIVIDUAL SHEETS AND A SHEET DISPENSING SYSTEM FOR PROVIDING INDIVIDUAL SHEETS [patent_app_type] => utility [patent_app_number] => 16/479481 [patent_app_country] => US [patent_app_date] => 2018-01-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10902 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [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] => 16479481 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/479481
STACKING MACHINE FOR HANDLING INDIVIDUAL SHEETS AND A SHEET DISPENSING SYSTEM FOR PROVIDING INDIVIDUAL SHEETS Jan 18, 2018 Abandoned
Array ( [id] => 15147279 [patent_doc_number] => 20190352117 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-11-21 [patent_title] => SHEET DISPENSING SYSTEM AND A METHOD FOR SUPPLYING AND DISPENSING INDIVIDUAL SHEETS [patent_app_type] => utility [patent_app_number] => 16/479470 [patent_app_country] => US [patent_app_date] => 2018-01-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8108 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 16479470 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/479470
SHEET DISPENSING SYSTEM AND A METHOD FOR SUPPLYING AND DISPENSING INDIVIDUAL SHEETS Jan 18, 2018 Abandoned
Array ( [id] => 14183599 [patent_doc_number] => 20190111504 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-04-18 [patent_title] => Transmission Device For a Table Saw [patent_app_type] => utility [patent_app_number] => 15/865542 [patent_app_country] => US [patent_app_date] => 2018-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2231 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15865542 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/865542
Transmission Device For a Table Saw Jan 8, 2018 Abandoned
Array ( [id] => 13312589 [patent_doc_number] => 20180207831 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-26 [patent_title] => CIRCULAR SAW [patent_app_type] => utility [patent_app_number] => 15/863176 [patent_app_country] => US [patent_app_date] => 2018-01-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2112 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15863176 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/863176
CIRCULAR SAW Jan 4, 2018 Abandoned
Array ( [id] => 12834157 [patent_doc_number] => 20180169891 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-21 [patent_title] => ANGLE ADJUSTMENT MECHANISM FOR CIRCULAR SAW [patent_app_type] => utility [patent_app_number] => 15/844935 [patent_app_country] => US [patent_app_date] => 2017-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1999 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 185 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15844935 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/844935
ANGLE ADJUSTMENT MECHANISM FOR CIRCULAR SAW Dec 17, 2017 Abandoned
Array ( [id] => 18947552 [patent_doc_number] => 11890829 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-02-06 [patent_title] => Cardboard box dividing device and cardboard box production device [patent_app_type] => utility [patent_app_number] => 16/771716 [patent_app_country] => US [patent_app_date] => 2017-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 21 [patent_no_of_words] => 14339 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 320 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16771716 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/771716
Cardboard box dividing device and cardboard box production device Dec 14, 2017 Issued
Array ( [id] => 14465889 [patent_doc_number] => 20190184584 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-06-20 [patent_title] => SAFETY FOR ASSIST OPENING KNIFE [patent_app_type] => utility [patent_app_number] => 15/844383 [patent_app_country] => US [patent_app_date] => 2017-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5140 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 184 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15844383 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/844383
Safety for assist opening knife Dec 14, 2017 Issued
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