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] => 4300723 [patent_doc_number] => 06247434 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-06-19 [patent_title] => 'Multi-position variable camshaft timing system actuated by engine oil' [patent_app_type] => 1 [patent_app_number] => 9/473804 [patent_app_country] => US [patent_app_date] => 1999-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 4829 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 198 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/247/06247434.pdf [firstpage_image] =>[orig_patent_app_number] => 473804 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/473804
Multi-position variable camshaft timing system actuated by engine oil Dec 27, 1999 Issued
Array ( [id] => 4271990 [patent_doc_number] => 06182624 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-02-06 [patent_title] => 'Hydraulic control valve mounting structure in an engine' [patent_app_type] => 1 [patent_app_number] => 9/473885 [patent_app_country] => US [patent_app_date] => 1999-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 4573 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/182/06182624.pdf [firstpage_image] =>[orig_patent_app_number] => 473885 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/473885
Hydraulic control valve mounting structure in an engine Dec 27, 1999 Issued
Array ( [id] => 4272003 [patent_doc_number] => 06182625 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-02-06 [patent_title] => 'Oil-passage structure of internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/473889 [patent_app_country] => US [patent_app_date] => 1999-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 12 [patent_no_of_words] => 3662 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 100 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/182/06182625.pdf [firstpage_image] =>[orig_patent_app_number] => 473889 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/473889
Oil-passage structure of internal combustion engine Dec 27, 1999 Issued
Array ( [id] => 4399987 [patent_doc_number] => 06192844 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-02-27 [patent_title] => 'Device for varying the control times of gas-exchange valves of an internal combustion engine in particular a camshaft adjusting device with an impeller' [patent_app_type] => 1 [patent_app_number] => 9/472469 [patent_app_country] => US [patent_app_date] => 1999-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 4619 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 574 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/192/06192844.pdf [firstpage_image] =>[orig_patent_app_number] => 472469 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/472469
Device for varying the control times of gas-exchange valves of an internal combustion engine in particular a camshaft adjusting device with an impeller Dec 26, 1999 Issued
Array ( [id] => 4280075 [patent_doc_number] => 06250266 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-06-26 [patent_title] => 'Variable valve timing mechanism for engine' [patent_app_type] => 1 [patent_app_number] => 9/471887 [patent_app_country] => US [patent_app_date] => 1999-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 3885 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/250/06250266.pdf [firstpage_image] =>[orig_patent_app_number] => 471887 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/471887
Variable valve timing mechanism for engine Dec 22, 1999 Issued
Array ( [id] => 4235838 [patent_doc_number] => 06202611 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-03-20 [patent_title] => 'Camshaft drive device for an internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/471899 [patent_app_country] => US [patent_app_date] => 1999-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 5731 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 354 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/202/06202611.pdf [firstpage_image] =>[orig_patent_app_number] => 471899 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/471899
Camshaft drive device for an internal combustion engine Dec 22, 1999 Issued
Array ( [id] => 4279909 [patent_doc_number] => 06186102 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-02-13 [patent_title] => 'Valve operating system for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/468916 [patent_app_country] => US [patent_app_date] => 1999-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 9779 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/186/06186102.pdf [firstpage_image] =>[orig_patent_app_number] => 468916 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/468916
Valve operating system for internal combustion engine Dec 21, 1999 Issued
Array ( [id] => 4399998 [patent_doc_number] => 06192845 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-02-27 [patent_title] => 'Hydraulic lash adjuster' [patent_app_type] => 1 [patent_app_number] => 9/470713 [patent_app_country] => US [patent_app_date] => 1999-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3069 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 268 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/192/06192845.pdf [firstpage_image] =>[orig_patent_app_number] => 470713 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/470713
Hydraulic lash adjuster Dec 21, 1999 Issued
Array ( [id] => 6345277 [patent_doc_number] => 20020056427 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-05-16 [patent_title] => 'CAM TIMING SYSTEM' [patent_app_type] => new [patent_app_number] => 09/468172 [patent_app_country] => US [patent_app_date] => 1999-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4409 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0056/20020056427.pdf [firstpage_image] =>[orig_patent_app_number] => 09468172 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/468172
CAM TIMING SYSTEM Dec 20, 1999 Abandoned
Array ( [id] => 4399972 [patent_doc_number] => 06192843 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-02-27 [patent_title] => 'Angular adjustment device' [patent_app_type] => 1 [patent_app_number] => 9/446387 [patent_app_country] => US [patent_app_date] => 1999-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3130 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 236 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/192/06192843.pdf [firstpage_image] =>[orig_patent_app_number] => 446387 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/446387
Angular adjustment device Dec 20, 1999 Issued
Array ( [id] => 1516636 [patent_doc_number] => 06412460 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-07-02 [patent_title] => 'Valve operating system in internal combustion engine' [patent_app_type] => B1 [patent_app_number] => 09/466831 [patent_app_country] => US [patent_app_date] => 1999-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 15 [patent_no_of_words] => 14171 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 197 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/412/06412460.pdf [firstpage_image] =>[orig_patent_app_number] => 09466831 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/466831
Valve operating system in internal combustion engine Dec 19, 1999 Issued
Array ( [id] => 4386635 [patent_doc_number] => 06227156 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-05-08 [patent_title] => 'Rocker arm for a valve train of an internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/464891 [patent_app_country] => US [patent_app_date] => 1999-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2139 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 366 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/227/06227156.pdf [firstpage_image] =>[orig_patent_app_number] => 464891 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/464891
Rocker arm for a valve train of an internal combustion engine Dec 15, 1999 Issued
Array ( [id] => 4236897 [patent_doc_number] => 06257185 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-07-10 [patent_title] => 'Switchable cam follower' [patent_app_type] => 1 [patent_app_number] => 9/460748 [patent_app_country] => US [patent_app_date] => 1999-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 9 [patent_no_of_words] => 2781 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 381 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/257/06257185.pdf [firstpage_image] =>[orig_patent_app_number] => 460748 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/460748
Switchable cam follower Dec 13, 1999 Issued
Array ( [id] => 4271490 [patent_doc_number] => 06196176 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-03-06 [patent_title] => 'Switchable cam follower' [patent_app_type] => 1 [patent_app_number] => 9/460749 [patent_app_country] => US [patent_app_date] => 1999-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 8 [patent_no_of_words] => 3177 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 392 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/196/06196176.pdf [firstpage_image] =>[orig_patent_app_number] => 460749 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/460749
Switchable cam follower Dec 13, 1999 Issued
Array ( [id] => 4160313 [patent_doc_number] => 06148779 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-11-21 [patent_title] => 'Internal combustion engine having hybrid cylinder valve actuation system' [patent_app_type] => 1 [patent_app_number] => 9/459497 [patent_app_country] => US [patent_app_date] => 1999-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1526 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/148/06148779.pdf [firstpage_image] =>[orig_patent_app_number] => 459497 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/459497
Internal combustion engine having hybrid cylinder valve actuation system Dec 12, 1999 Issued
Array ( [id] => 4363172 [patent_doc_number] => 06293239 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-09-25 [patent_title] => 'Valve gear for gas exchange valves of internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 9/402004 [patent_app_country] => US [patent_app_date] => 1999-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 2610 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/293/06293239.pdf [firstpage_image] =>[orig_patent_app_number] => 402004 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/402004
Valve gear for gas exchange valves of internal combustion engines Dec 12, 1999 Issued
Array ( [id] => 4323852 [patent_doc_number] => 06213068 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-04-10 [patent_title] => 'Method of checking the operability of the variable valve control in an internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 9/457871 [patent_app_country] => US [patent_app_date] => 1999-12-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 2610 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/213/06213068.pdf [firstpage_image] =>[orig_patent_app_number] => 457871 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/457871
Method of checking the operability of the variable valve control in an internal combustion engine Dec 9, 1999 Issued
09/459396 VALVE SYSTEM FOR A VALVE-CONTROLLED COMBUSTION ENGINE Dec 2, 1999 Abandoned
Array ( [id] => 4271975 [patent_doc_number] => 06182623 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-02-06 [patent_title] => 'Variable valve control device' [patent_app_type] => 1 [patent_app_number] => 9/453708 [patent_app_country] => US [patent_app_date] => 1999-12-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 8572 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 252 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/182/06182623.pdf [firstpage_image] =>[orig_patent_app_number] => 453708 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/453708
Variable valve control device Dec 2, 1999 Issued
Array ( [id] => 4306194 [patent_doc_number] => 06328009 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-12-11 [patent_title] => 'Valve lifter apparatus' [patent_app_type] => 1 [patent_app_number] => 9/454464 [patent_app_country] => US [patent_app_date] => 1999-12-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 19 [patent_no_of_words] => 6184 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 208 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/328/06328009.pdf [firstpage_image] =>[orig_patent_app_number] => 454464 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/454464
Valve lifter apparatus Dec 2, 1999 Issued
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