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] => 2648338 [patent_doc_number] => 04903651 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-27 [patent_title] => 'Rocker arm clearance removing device' [patent_app_type] => 1 [patent_app_number] => 7/263457 [patent_app_country] => US [patent_app_date] => 1988-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 2211 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 207 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/903/04903651.pdf [firstpage_image] =>[orig_patent_app_number] => 263457 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/263457
Rocker arm clearance removing device Oct 26, 1988 Issued
Array ( [id] => 2512801 [patent_doc_number] => 04887565 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-12-19 [patent_title] => 'Internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/263276 [patent_app_country] => US [patent_app_date] => 1988-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2253 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/887/04887565.pdf [firstpage_image] =>[orig_patent_app_number] => 263276 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/263276
Internal combustion engine Oct 26, 1988 Issued
Array ( [id] => 2572666 [patent_doc_number] => 04917059 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-04-17 [patent_title] => 'Valve lash adjuster' [patent_app_type] => 1 [patent_app_number] => 7/254815 [patent_app_country] => US [patent_app_date] => 1988-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 3333 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 259 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/917/04917059.pdf [firstpage_image] =>[orig_patent_app_number] => 254815 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/254815
Valve lash adjuster Oct 6, 1988 Issued
Array ( [id] => 2472008 [patent_doc_number] => 04846121 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-07-11 [patent_title] => 'Variable friction roller tappets' [patent_app_type] => 1 [patent_app_number] => 7/253517 [patent_app_country] => US [patent_app_date] => 1988-10-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1274 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 62 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/846/04846121.pdf [firstpage_image] =>[orig_patent_app_number] => 253517 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/253517
Variable friction roller tappets Oct 4, 1988 Issued
Array ( [id] => 2468391 [patent_doc_number] => 04858572 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-08-22 [patent_title] => 'Device for adjusting an angular phase difference between two elements' [patent_app_type] => 1 [patent_app_number] => 7/252054 [patent_app_country] => US [patent_app_date] => 1988-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 2613 [patent_no_of_claims] => 9 [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/04/858/04858572.pdf [firstpage_image] =>[orig_patent_app_number] => 252054 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/252054
Device for adjusting an angular phase difference between two elements Sep 29, 1988 Issued
Array ( [id] => 2541379 [patent_doc_number] => 04848286 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-07-18 [patent_title] => 'Ceramic tiped pivot rod and method for its manufacture' [patent_app_type] => 1 [patent_app_number] => 7/250069 [patent_app_country] => US [patent_app_date] => 1988-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 3433 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 228 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/848/04848286.pdf [firstpage_image] =>[orig_patent_app_number] => 250069 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/250069
Ceramic tiped pivot rod and method for its manufacture Sep 27, 1988 Issued
Array ( [id] => 2512745 [patent_doc_number] => 04887562 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-12-19 [patent_title] => 'Modular, self-contained hydraulic valve timing systems for internal combustion engines' [patent_app_type] => 1 [patent_app_number] => 7/250180 [patent_app_country] => US [patent_app_date] => 1988-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 2750 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 292 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/887/04887562.pdf [firstpage_image] =>[orig_patent_app_number] => 250180 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/250180
Modular, self-contained hydraulic valve timing systems for internal combustion engines Sep 27, 1988 Issued
Array ( [id] => 2542005 [patent_doc_number] => 04856466 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-08-15 [patent_title] => 'Lubricant retaining finger-follower rocker arm' [patent_app_type] => 1 [patent_app_number] => 7/250476 [patent_app_country] => US [patent_app_date] => 1988-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 11 [patent_no_of_words] => 1358 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/856/04856466.pdf [firstpage_image] =>[orig_patent_app_number] => 250476 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/250476
Lubricant retaining finger-follower rocker arm Sep 27, 1988 Issued
Array ( [id] => 2608814 [patent_doc_number] => RE033310 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-08-28 [patent_title] => 'Valve operating and interrupting mechanism for internal combustion engine' [patent_app_type] => 2 [patent_app_number] => 7/248995 [patent_app_country] => US [patent_app_date] => 1988-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 11 [patent_no_of_words] => 5834 [patent_no_of_claims] => 34 [patent_no_of_ind_claims] => 9 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/RE/033/RE033310.pdf [firstpage_image] =>[orig_patent_app_number] => 248995 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/248995
Valve operating and interrupting mechanism for internal combustion engine Sep 22, 1988 Issued
Array ( [id] => 2542058 [patent_doc_number] => 04856469 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-08-15 [patent_title] => 'Mechanical parts of valve driving mechanism for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/247639 [patent_app_country] => US [patent_app_date] => 1988-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 2317 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/856/04856469.pdf [firstpage_image] =>[orig_patent_app_number] => 247639 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/247639
Mechanical parts of valve driving mechanism for internal combustion engine Sep 21, 1988 Issued
Array ( [id] => 2572610 [patent_doc_number] => 04917056 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-04-17 [patent_title] => 'Valve operation control system in internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/247952 [patent_app_country] => US [patent_app_date] => 1988-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 32 [patent_figures_cnt] => 36 [patent_no_of_words] => 11907 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 198 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/917/04917056.pdf [firstpage_image] =>[orig_patent_app_number] => 247952 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/247952
Valve operation control system in internal combustion engine Sep 21, 1988 Issued
Array ( [id] => 2549102 [patent_doc_number] => 04899701 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-13 [patent_title] => 'Valve operation control device for internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/247153 [patent_app_country] => US [patent_app_date] => 1988-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 3844 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 211 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/899/04899701.pdf [firstpage_image] =>[orig_patent_app_number] => 247153 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/247153
Valve operation control device for internal combustion engine Sep 20, 1988 Issued
Array ( [id] => 2622294 [patent_doc_number] => 04898129 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-06 [patent_title] => 'Valve control of internal combustion engines by means of a cam-driven rotary piston pump' [patent_app_type] => 1 [patent_app_number] => 7/237227 [patent_app_country] => US [patent_app_date] => 1988-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1897 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/898/04898129.pdf [firstpage_image] =>[orig_patent_app_number] => 237227 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/237227
Valve control of internal combustion engines by means of a cam-driven rotary piston pump Aug 25, 1988 Issued
Array ( [id] => 2541504 [patent_doc_number] => 04896633 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-01-30 [patent_title] => 'Valve control of internal combustion engines by means of a rotary piston pump with unequal pumping output' [patent_app_type] => 1 [patent_app_number] => 7/237226 [patent_app_country] => US [patent_app_date] => 1988-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1696 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/896/04896633.pdf [firstpage_image] =>[orig_patent_app_number] => 237226 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/237226
Valve control of internal combustion engines by means of a rotary piston pump with unequal pumping output Aug 25, 1988 Issued
Array ( [id] => 2507889 [patent_doc_number] => 04879978 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-11-14 [patent_title] => 'Poppet valve spring retainer' [patent_app_type] => 1 [patent_app_number] => 7/236553 [patent_app_country] => US [patent_app_date] => 1988-08-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3080 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/879/04879978.pdf [firstpage_image] =>[orig_patent_app_number] => 236553 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/236553
Poppet valve spring retainer Aug 24, 1988 Issued
Array ( [id] => 2496277 [patent_doc_number] => 04862841 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-09-05 [patent_title] => 'Internal combustion engine' [patent_app_type] => 1 [patent_app_number] => 7/235549 [patent_app_country] => US [patent_app_date] => 1988-08-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 3559 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 208 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/862/04862841.pdf [firstpage_image] =>[orig_patent_app_number] => 235549 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/235549
Internal combustion engine Aug 23, 1988 Issued
Array ( [id] => 2470209 [patent_doc_number] => 04841924 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-06-27 [patent_title] => 'Sealed camshaft phase change device' [patent_app_type] => 1 [patent_app_number] => 7/233703 [patent_app_country] => US [patent_app_date] => 1988-08-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2225 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/841/04841924.pdf [firstpage_image] =>[orig_patent_app_number] => 233703 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/233703
Sealed camshaft phase change device Aug 17, 1988 Issued
Array ( [id] => 2463017 [patent_doc_number] => 04864983 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-09-12 [patent_title] => 'Pushrod retainer' [patent_app_type] => 1 [patent_app_number] => 7/233296 [patent_app_country] => US [patent_app_date] => 1988-08-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3016 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 196 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/864/04864983.pdf [firstpage_image] =>[orig_patent_app_number] => 233296 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/233296
Pushrod retainer Aug 16, 1988 Issued
Array ( [id] => 2620111 [patent_doc_number] => 04892067 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-01-09 [patent_title] => 'Valve control system for engines' [patent_app_type] => 1 [patent_app_number] => 7/223436 [patent_app_country] => US [patent_app_date] => 1988-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 3647 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 328 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/892/04892067.pdf [firstpage_image] =>[orig_patent_app_number] => 223436 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/223436
Valve control system for engines Jul 24, 1988 Issued
Array ( [id] => 2509432 [patent_doc_number] => 04872429 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1989-10-10 [patent_title] => 'Method of making low friction finger follower rocker arms' [patent_app_type] => 1 [patent_app_number] => 7/220714 [patent_app_country] => US [patent_app_date] => 1988-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 13 [patent_no_of_words] => 2099 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/872/04872429.pdf [firstpage_image] =>[orig_patent_app_number] => 220714 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/220714
Method of making low friction finger follower rocker arms Jul 17, 1988 Issued
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