Search

Weilun Lo

Supervisory Patent Examiner (ID: 18821, Phone: (571)272-4847 , Office: P/2179 )

Most Active Art Unit
3402
Art Unit(s)
3748, 3747, 2179, 3402, 3761, 3723, 2899
Total Applications
2327
Issued Applications
2049
Pending Applications
47
Abandoned Applications
231

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 1439482 [patent_doc_number] => 06334413 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-01-01 [patent_title] => 'Electromagnetic actuating system' [patent_app_type] => B1 [patent_app_number] => 09/452798 [patent_app_country] => US [patent_app_date] => 1999-12-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 11 [patent_no_of_words] => 6864 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/334/06334413.pdf [firstpage_image] =>[orig_patent_app_number] => 09452798 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/452798
Electromagnetic actuating system Dec 1, 1999 Issued
Array ( [id] => 4280061 [patent_doc_number] => 06250265 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-06-26 [patent_title] => 'Variable valve timing with actuator locking for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/450456 [patent_app_country] => US [patent_app_date] => 1999-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 3474 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/250/06250265.pdf [firstpage_image] =>[orig_patent_app_number] => 450456 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/450456
Variable valve timing with actuator locking for internal combustion engine Nov 28, 1999 Issued
Array ( [id] => 4323910 [patent_doc_number] => 06213072 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-04-10 [patent_title] => 'V-shaped internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/448495 [patent_app_country] => US [patent_app_date] => 1999-11-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 6237 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 200 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/213/06213072.pdf [firstpage_image] =>[orig_patent_app_number] => 448495 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/448495
V-shaped internal combustion engine Nov 23, 1999 Issued
Array ( [id] => 4324299 [patent_doc_number] => 06332440 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-12-25 [patent_title] => 'Four-stroke cycle internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/447808 [patent_app_country] => US [patent_app_date] => 1999-11-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2853 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 253 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/332/06332440.pdf [firstpage_image] =>[orig_patent_app_number] => 447808 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/447808
Four-stroke cycle internal combustion engine Nov 22, 1999 Issued
Array ( [id] => 4386532 [patent_doc_number] => 06237550 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-05-29 [patent_title] => 'Solenoid-operated valve for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/447235 [patent_app_country] => US [patent_app_date] => 1999-11-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 4896 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 37 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/237/06237550.pdf [firstpage_image] =>[orig_patent_app_number] => 447235 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/447235
Solenoid-operated valve for internal combustion engine Nov 22, 1999 Issued
Array ( [id] => 1590043 [patent_doc_number] => 06491007 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-12-10 [patent_title] => 'Hydraulically controllable globe valve' [patent_app_type] => B1 [patent_app_number] => 09/443923 [patent_app_country] => US [patent_app_date] => 1999-11-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5612 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/491/06491007.pdf [firstpage_image] =>[orig_patent_app_number] => 09443923 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/443923
Hydraulically controllable globe valve Nov 18, 1999 Issued
Array ( [id] => 4384725 [patent_doc_number] => 06170446 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-01-09 [patent_title] => 'Valve timing control system for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/441665 [patent_app_country] => US [patent_app_date] => 1999-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 19 [patent_no_of_words] => 10696 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 257 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/170/06170446.pdf [firstpage_image] =>[orig_patent_app_number] => 441665 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/441665
Valve timing control system for internal combustion engine Nov 16, 1999 Issued
Array ( [id] => 4360405 [patent_doc_number] => 06276316 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-08-21 [patent_title] => 'Intake-air quantity control apparatus for internal combustion engine with variable valve timing system' [patent_app_type] => 1 [patent_app_number] => 9/442031 [patent_app_country] => US [patent_app_date] => 1999-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 6360 [patent_no_of_claims] => 37 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/276/06276316.pdf [firstpage_image] =>[orig_patent_app_number] => 442031 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/442031
Intake-air quantity control apparatus for internal combustion engine with variable valve timing system Nov 16, 1999 Issued
Array ( [id] => 4267856 [patent_doc_number] => 06234122 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-05-22 [patent_title] => 'Method for driving an electromagnetic actuator for operating a gas change valve' [patent_app_type] => 1 [patent_app_number] => 9/440656 [patent_app_country] => US [patent_app_date] => 1999-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3970 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/234/06234122.pdf [firstpage_image] =>[orig_patent_app_number] => 440656 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/440656
Method for driving an electromagnetic actuator for operating a gas change valve Nov 15, 1999 Issued
Array ( [id] => 4384710 [patent_doc_number] => 06170445 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-01-09 [patent_title] => 'Electromagnetic actuating system of internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/441336 [patent_app_country] => US [patent_app_date] => 1999-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 5938 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/170/06170445.pdf [firstpage_image] =>[orig_patent_app_number] => 441336 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/441336
Electromagnetic actuating system of internal combustion engine Nov 15, 1999 Issued
Array ( [id] => 4383342 [patent_doc_number] => 06230673 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-05-15 [patent_title] => 'Solenoid-operated valve for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/440669 [patent_app_country] => US [patent_app_date] => 1999-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4210 [patent_no_of_claims] => 2 [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/06/230/06230673.pdf [firstpage_image] =>[orig_patent_app_number] => 440669 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/440669
Solenoid-operated valve for internal combustion engine Nov 15, 1999 Issued
Array ( [id] => 4335295 [patent_doc_number] => 06189498 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-02-20 [patent_title] => 'Cam shaft drive for engine' [patent_app_type] => 1 [patent_app_number] => 9/441317 [patent_app_country] => US [patent_app_date] => 1999-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 2784 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 196 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/189/06189498.pdf [firstpage_image] =>[orig_patent_app_number] => 441317 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/441317
Cam shaft drive for engine Nov 15, 1999 Issued
Array ( [id] => 4134914 [patent_doc_number] => 06155221 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-12-05 [patent_title] => 'Control apparatus for varying a rotational or angular phase between two rotational shafts, preferably applicable to a valve timing control apparatus for an internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/440096 [patent_app_country] => US [patent_app_date] => 1999-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 18 [patent_no_of_words] => 10937 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 289 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/155/06155221.pdf [firstpage_image] =>[orig_patent_app_number] => 440096 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/440096
Control apparatus for varying a rotational or angular phase between two rotational shafts, preferably applicable to a valve timing control apparatus for an internal combustion engine Nov 14, 1999 Issued
Array ( [id] => 4211115 [patent_doc_number] => 06164253 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-12-26 [patent_title] => 'Actuators operating device for electromagnetic valve actuation in internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 9/367567 [patent_app_country] => US [patent_app_date] => 1999-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2167 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/164/06164253.pdf [firstpage_image] =>[orig_patent_app_number] => 367567 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/367567
Actuators operating device for electromagnetic valve actuation in internal combustion engines Nov 14, 1999 Issued
Array ( [id] => 4215131 [patent_doc_number] => 06089197 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-07-18 [patent_title] => 'Electromagnetic actuator for an engine valve, including an integrated valve slack adjuster' [patent_app_type] => 1 [patent_app_number] => 9/440091 [patent_app_country] => US [patent_app_date] => 1999-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 3593 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 269 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/089/06089197.pdf [firstpage_image] =>[orig_patent_app_number] => 440091 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/440091
Electromagnetic actuator for an engine valve, including an integrated valve slack adjuster Nov 14, 1999 Issued
Array ( [id] => 4323840 [patent_doc_number] => 06213067 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-04-10 [patent_title] => 'Control device for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/439280 [patent_app_country] => US [patent_app_date] => 1999-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 3947 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/213/06213067.pdf [firstpage_image] =>[orig_patent_app_number] => 439280 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/439280
Control device for internal combustion engine Nov 14, 1999 Issued
Array ( [id] => 4356933 [patent_doc_number] => 06302072 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-10-16 [patent_title] => 'Vane type hydraulic actuator' [patent_app_type] => 1 [patent_app_number] => 9/439281 [patent_app_country] => US [patent_app_date] => 1999-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 24 [patent_no_of_words] => 13005 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/302/06302072.pdf [firstpage_image] =>[orig_patent_app_number] => 439281 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/439281
Vane type hydraulic actuator Nov 14, 1999 Issued
Array ( [id] => 4279881 [patent_doc_number] => 06186100 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-02-13 [patent_title] => 'Valve assembly for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/438499 [patent_app_country] => US [patent_app_date] => 1999-11-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 3713 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 309 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/186/06186100.pdf [firstpage_image] =>[orig_patent_app_number] => 438499 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/438499
Valve assembly for internal combustion engine Nov 11, 1999 Issued
Array ( [id] => 1560095 [patent_doc_number] => 06374784 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-04-23 [patent_title] => 'Valve control mechanism for intake and exhaust valves of internal combustion engines' [patent_app_type] => B1 [patent_app_number] => 09/441652 [patent_app_country] => US [patent_app_date] => 1999-11-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 23 [patent_no_of_words] => 7506 [patent_no_of_claims] => 46 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/374/06374784.pdf [firstpage_image] =>[orig_patent_app_number] => 09441652 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/441652
Valve control mechanism for intake and exhaust valves of internal combustion engines Nov 11, 1999 Issued
Array ( [id] => 1491386 [patent_doc_number] => 06341584 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-01-29 [patent_title] => 'Valve timing control device and method for vehicle engine' [patent_app_type] => B1 [patent_app_number] => 09/436633 [patent_app_country] => US [patent_app_date] => 1999-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 21 [patent_no_of_words] => 7567 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/341/06341584.pdf [firstpage_image] =>[orig_patent_app_number] => 09436633 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/436633
Valve timing control device and method for vehicle engine Nov 8, 1999 Issued
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