Search

Nathaniel C. Chukwurah

Examiner (ID: 11963, Phone: (571)272-4457 , Office: P/3721 )

Most Active Art Unit
3731
Art Unit(s)
3721, 3731
Total Applications
2396
Issued Applications
1945
Pending Applications
142
Abandoned Applications
341

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18535600 [patent_doc_number] => 20230240684 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-03 [patent_title] => SYSTEMS AND METHODS FOR SUTURE FAILURE DETECTION DURING SURGICAL STAPLING [patent_app_type] => utility [patent_app_number] => 18/133082 [patent_app_country] => US [patent_app_date] => 2023-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5009 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18133082 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/133082
Systems and methods for suture failure detection during surgical stapling Apr 10, 2023 Issued
Array ( [id] => 19551237 [patent_doc_number] => 12134937 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-05 [patent_title] => Impact piston device for a impact drill drive [patent_app_type] => utility [patent_app_number] => 18/297756 [patent_app_country] => US [patent_app_date] => 2023-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3414 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 217 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18297756 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/297756
Impact piston device for a impact drill drive Apr 9, 2023 Issued
Array ( [id] => 18535599 [patent_doc_number] => 20230240683 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-03 [patent_title] => METHODS AND STRUCTURE FOR CONFIRMING PROPER ASSEMBLY OF POWERED SURGICAL STAPLING SYSTEMS [patent_app_type] => utility [patent_app_number] => 18/132590 [patent_app_country] => US [patent_app_date] => 2023-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5704 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 18132590 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/132590
Methods and structure for confirming proper assembly of powered surgical stapling systems Apr 9, 2023 Issued
Array ( [id] => 20328089 [patent_doc_number] => 12458346 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-04 [patent_title] => Staple instrument [patent_app_type] => utility [patent_app_number] => 18/131141 [patent_app_country] => US [patent_app_date] => 2023-04-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 21 [patent_no_of_words] => 0 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18131141 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/131141
Staple instrument Apr 4, 2023 Issued
Array ( [id] => 20163559 [patent_doc_number] => 20250255605 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-14 [patent_title] => A SURGICAL STAPLE CARTRIDGE AND A SURGICAL END EFFECTOR ASSEMBLY WITH BUMPS [patent_app_type] => utility [patent_app_number] => 18/851251 [patent_app_country] => US [patent_app_date] => 2023-04-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18851251 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/851251
A SURGICAL STAPLE CARTRIDGE AND A SURGICAL END EFFECTOR ASSEMBLY WITH BUMPS Apr 4, 2023 Issued
Array ( [id] => 19768010 [patent_doc_number] => 20250049436 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-13 [patent_title] => END EFFECTOR AND OPEN LINEAR STAPLER HAVING THE SAME [patent_app_type] => utility [patent_app_number] => 18/851259 [patent_app_country] => US [patent_app_date] => 2023-04-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5994 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 18851259 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/851259
End effector and open linear stapler having the same Apr 4, 2023 Issued
Array ( [id] => 20083312 [patent_doc_number] => 20250213248 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-03 [patent_title] => OPEN LINEAR STAPLER [patent_app_type] => utility [patent_app_number] => 18/851254 [patent_app_country] => US [patent_app_date] => 2023-04-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18851254 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/851254
OPEN LINEAR STAPLER Apr 4, 2023 Issued
Array ( [id] => 20056843 [patent_doc_number] => 20250195065 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-19 [patent_title] => SURGICAL STAPLER AND STAPLE CARTRIDGE FOR THE SAME [patent_app_type] => utility [patent_app_number] => 18/851247 [patent_app_country] => US [patent_app_date] => 2023-04-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6028 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18851247 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/851247
Surgical stapler and staple cartridge for the same Apr 4, 2023 Issued
Array ( [id] => 20083314 [patent_doc_number] => 20250213250 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-03 [patent_title] => SURGICAL STAPLE CARTRIDGE WITH INSTALLATION POKA-YOKE FEATURES [patent_app_type] => utility [patent_app_number] => 18/851261 [patent_app_country] => US [patent_app_date] => 2023-04-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1125 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18851261 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/851261
Surgical staple cartridge with installation poka-yoke features Apr 4, 2023 Issued
Array ( [id] => 20606818 [patent_doc_number] => 12582397 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-24 [patent_title] => Surgical instrument with lockout features [patent_app_type] => utility [patent_app_number] => 18/851277 [patent_app_country] => US [patent_app_date] => 2023-04-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 0 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18851277 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/851277
Surgical instrument with lockout features Apr 4, 2023 Issued
Array ( [id] => 19882711 [patent_doc_number] => 12268391 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-08 [patent_title] => Advancing a toothed rack of a surgical handle assembly [patent_app_type] => utility [patent_app_number] => 18/129317 [patent_app_country] => US [patent_app_date] => 2023-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 8908 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18129317 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/129317
Advancing a toothed rack of a surgical handle assembly Mar 30, 2023 Issued
Array ( [id] => 18535595 [patent_doc_number] => 20230240679 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-03 [patent_title] => SURGICAL STAPLER WITH PULSE WIDTH MODULATED DRIVEN ADJUSTABLE SPEED STAPLE FIRING STROKE [patent_app_type] => utility [patent_app_number] => 18/191841 [patent_app_country] => US [patent_app_date] => 2023-03-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 48732 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18191841 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/191841
Surgical stapler with pulse width modulated driven adjustable speed staple firing stroke Mar 27, 2023 Issued
Array ( [id] => 18806503 [patent_doc_number] => 20230380833 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-30 [patent_title] => STAPLE CARTRIDGE COMPRISING A VARIABLE THICKNESS COMPRESSIBLE PORTION [patent_app_type] => utility [patent_app_number] => 18/127182 [patent_app_country] => US [patent_app_date] => 2023-03-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 108720 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [patent_words_short_claim] => 189 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18127182 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/127182
STAPLE CARTRIDGE COMPRISING A VARIABLE THICKNESS COMPRESSIBLE PORTION Mar 27, 2023 Abandoned
Array ( [id] => 20200204 [patent_doc_number] => 12402966 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-02 [patent_title] => End of life indicators for robotic surgical instruments [patent_app_type] => utility [patent_app_number] => 18/190489 [patent_app_country] => US [patent_app_date] => 2023-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 15 [patent_no_of_words] => 9195 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18190489 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/190489
End of life indicators for robotic surgical instruments Mar 26, 2023 Issued
Array ( [id] => 19324493 [patent_doc_number] => 12042145 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-07-23 [patent_title] => Insertion device and method for inserting a medical device [patent_app_type] => utility [patent_app_number] => 18/189821 [patent_app_country] => US [patent_app_date] => 2023-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 16 [patent_no_of_words] => 19187 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18189821 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/189821
Insertion device and method for inserting a medical device Mar 23, 2023 Issued
Array ( [id] => 18523491 [patent_doc_number] => 20230234146 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-27 [patent_title] => SMART ELECTRIC POWER TOOL AND CONTROL METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/189802 [patent_app_country] => US [patent_app_date] => 2023-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10927 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18189802 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/189802
Smart electric power tool and control method thereof Mar 23, 2023 Issued
Array ( [id] => 18496611 [patent_doc_number] => 20230219199 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-13 [patent_title] => RATCHET WRENCH [patent_app_type] => utility [patent_app_number] => 18/125250 [patent_app_country] => US [patent_app_date] => 2023-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15256 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18125250 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/125250
Ratchet wrench Mar 22, 2023 Issued
Array ( [id] => 20761657 [patent_doc_number] => 20260158632 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-06-11 [patent_title] => Geared Torque Tool and a Unitary Subassembly for the Same [patent_app_type] => utility [patent_app_number] => 18/755284 [patent_app_country] => US [patent_app_date] => 2023-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1093 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 18755284 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/755284
Geared Torque Tool and a Unitary Subassembly for the Same Mar 22, 2023 Pending
Array ( [id] => 19490986 [patent_doc_number] => 12109673 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-10-08 [patent_title] => Vibration suppression bar handle structures for high-vibration handheld machines [patent_app_type] => utility [patent_app_number] => 18/188066 [patent_app_country] => US [patent_app_date] => 2023-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 23 [patent_no_of_words] => 7748 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18188066 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/188066
Vibration suppression bar handle structures for high-vibration handheld machines Mar 21, 2023 Issued
Array ( [id] => 18627375 [patent_doc_number] => 20230286192 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-14 [patent_title] => SAW CART [patent_app_type] => utility [patent_app_number] => 18/181010 [patent_app_country] => US [patent_app_date] => 2023-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5894 [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] => 18181010 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/181010
Saw cart Mar 8, 2023 Issued
Menu