Search

Weilun Lo

Supervisory Patent Examiner (ID: 6938, Phone: (571)272-4847 , Office: P/2179 )

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

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 4091373 [patent_doc_number] => 06021751 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-02-08 [patent_title] => 'Hydraulic valve lifter with lash' [patent_app_type] => 1 [patent_app_number] => 9/252143 [patent_app_country] => US [patent_app_date] => 1999-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 2619 [patent_no_of_claims] => 12 [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] => patents/06/021/06021751.pdf [firstpage_image] =>[orig_patent_app_number] => 252143 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/252143
Hydraulic valve lifter with lash Feb 17, 1999 Issued
Array ( [id] => 4134943 [patent_doc_number] => 06155222 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-12-05 [patent_title] => 'Overhead valve engine' [patent_app_type] => 1 [patent_app_number] => 9/250264 [patent_app_country] => US [patent_app_date] => 1999-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 12 [patent_no_of_words] => 4382 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 318 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/155/06155222.pdf [firstpage_image] =>[orig_patent_app_number] => 250264 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/250264
Overhead valve engine Feb 15, 1999 Issued
Array ( [id] => 4248754 [patent_doc_number] => 06244230 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-06-12 [patent_title] => 'Variable valve timing apparatus' [patent_app_type] => 1 [patent_app_number] => 9/250275 [patent_app_country] => US [patent_app_date] => 1999-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 22 [patent_no_of_words] => 11082 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/244/06244230.pdf [firstpage_image] =>[orig_patent_app_number] => 250275 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/250275
Variable valve timing apparatus Feb 15, 1999 Issued
Array ( [id] => 4170584 [patent_doc_number] => 06041750 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-03-28 [patent_title] => 'Rocker arm bridge for internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 9/249742 [patent_app_country] => US [patent_app_date] => 1999-02-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 11 [patent_no_of_words] => 4685 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 372 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/041/06041750.pdf [firstpage_image] =>[orig_patent_app_number] => 249742 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/249742
Rocker arm bridge for internal combustion engines Feb 10, 1999 Issued
Array ( [id] => 4145432 [patent_doc_number] => 06138627 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-10-31 [patent_title] => 'Valve operating arrangement for engine' [patent_app_type] => 1 [patent_app_number] => 9/247221 [patent_app_country] => US [patent_app_date] => 1999-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 5792 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/138/06138627.pdf [firstpage_image] =>[orig_patent_app_number] => 247221 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/247221
Valve operating arrangement for engine Feb 9, 1999 Issued
Array ( [id] => 4323925 [patent_doc_number] => 06213073 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-04-10 [patent_title] => 'Covering structure for covering timing mechanism and timing mechanism chamber structure inside cover comprised in covering structure for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/244994 [patent_app_country] => US [patent_app_date] => 1999-02-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 24 [patent_no_of_words] => 11848 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 207 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/213/06213073.pdf [firstpage_image] =>[orig_patent_app_number] => 244994 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/244994
Covering structure for covering timing mechanism and timing mechanism chamber structure inside cover comprised in covering structure for internal combustion engine Feb 3, 1999 Issued
Array ( [id] => 4156775 [patent_doc_number] => 06035819 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-03-14 [patent_title] => 'Variable valve timing controller' [patent_app_type] => 1 [patent_app_number] => 9/239722 [patent_app_country] => US [patent_app_date] => 1999-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 12385 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 198 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/035/06035819.pdf [firstpage_image] =>[orig_patent_app_number] => 239722 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/239722
Variable valve timing controller Jan 28, 1999 Issued
Array ( [id] => 4156763 [patent_doc_number] => 06035818 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-03-14 [patent_title] => 'Variable valve control apparatus' [patent_app_type] => 1 [patent_app_number] => 9/238178 [patent_app_country] => US [patent_app_date] => 1999-01-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 8656 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/035/06035818.pdf [firstpage_image] =>[orig_patent_app_number] => 238178 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/238178
Variable valve control apparatus Jan 27, 1999 Issued
09/238180 VARIABLE VALVE TIMING MECHANISM Jan 27, 1999 Abandoned
Array ( [id] => 4054439 [patent_doc_number] => 06067948 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-05-30 [patent_title] => 'Device for actuating at least one gas exchange valve of an internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/239506 [patent_app_country] => US [patent_app_date] => 1999-01-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1985 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 345 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/067/06067948.pdf [firstpage_image] =>[orig_patent_app_number] => 239506 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/239506
Device for actuating at least one gas exchange valve of an internal combustion engine Jan 27, 1999 Issued
Array ( [id] => 4384754 [patent_doc_number] => 06170448 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-01-09 [patent_title] => 'Variable valve timing apparatus' [patent_app_type] => 1 [patent_app_number] => 9/238034 [patent_app_country] => US [patent_app_date] => 1999-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 14 [patent_no_of_words] => 8064 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 259 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/170/06170448.pdf [firstpage_image] =>[orig_patent_app_number] => 238034 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/238034
Variable valve timing apparatus Jan 26, 1999 Issued
90/005233 ENGINE PISTON ASSEMBLY AND FORGED PISTON MEMBER THEREFOR HAVING A COOLING RECESS Jan 25, 1999 Issued
90/005235 ENGINE INCLUDING A PISTON MEMBER HAVING A HIGH TOP RING GROOVE Jan 25, 1999 Issued
Array ( [id] => 4129100 [patent_doc_number] => 06105544 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-08-22 [patent_title] => 'Device for altering the opening and closing times of gas-exchange valves of an internal-combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/230471 [patent_app_country] => US [patent_app_date] => 1999-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2550 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 205 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/105/06105544.pdf [firstpage_image] =>[orig_patent_app_number] => 230471 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/230471
Device for altering the opening and closing times of gas-exchange valves of an internal-combustion engine Jan 25, 1999 Issued
Array ( [id] => 4098483 [patent_doc_number] => 06070561 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-06-06 [patent_title] => 'Valve actuator with lubrication passage and method of forming' [patent_app_type] => 1 [patent_app_number] => 9/235916 [patent_app_country] => US [patent_app_date] => 1999-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 2295 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/070/06070561.pdf [firstpage_image] =>[orig_patent_app_number] => 235916 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/235916
Valve actuator with lubrication passage and method of forming Jan 24, 1999 Issued
Array ( [id] => 4062555 [patent_doc_number] => 06053136 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-04-25 [patent_title] => 'To internal combustion engines with variable valve actuation' [patent_app_type] => 1 [patent_app_number] => 9/235307 [patent_app_country] => US [patent_app_date] => 1999-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 2040 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 359 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/053/06053136.pdf [firstpage_image] =>[orig_patent_app_number] => 235307 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/235307
To internal combustion engines with variable valve actuation Jan 21, 1999 Issued
Array ( [id] => 4123557 [patent_doc_number] => 06062183 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-05-16 [patent_title] => 'Variable valve operation control apparatus' [patent_app_type] => 1 [patent_app_number] => 9/233477 [patent_app_country] => US [patent_app_date] => 1999-01-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 5132 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/062/06062183.pdf [firstpage_image] =>[orig_patent_app_number] => 233477 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/233477
Variable valve operation control apparatus Jan 19, 1999 Issued
Array ( [id] => 4071774 [patent_doc_number] => 06095104 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-08-01 [patent_title] => 'Method for the dimension checking of the timing system of an engine' [patent_app_type] => 1 [patent_app_number] => 9/230092 [patent_app_country] => US [patent_app_date] => 1999-01-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 6127 [patent_no_of_claims] => 12 [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] => patents/06/095/06095104.pdf [firstpage_image] =>[orig_patent_app_number] => 230092 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/230092
Method for the dimension checking of the timing system of an engine Jan 19, 1999 Issued
09/227439 VALVE DRIVE FOR AN INTERNAL COMBUSTION ENGINE Jan 10, 1999 Abandoned
Array ( [id] => 4191189 [patent_doc_number] => 06109225 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-08-29 [patent_title] => 'Valve timing control device for an internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/225744 [patent_app_country] => US [patent_app_date] => 1999-01-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 33 [patent_figures_cnt] => 43 [patent_no_of_words] => 23058 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/109/06109225.pdf [firstpage_image] =>[orig_patent_app_number] => 225744 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/225744
Valve timing control device for an internal combustion engine Jan 4, 1999 Issued
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