Search

Li Wu Chang

Examiner (ID: 335, Phone: (571)270-3809 , Office: P/2124 )

Most Active Art Unit
2124
Art Unit(s)
2142, 2129, 2124
Total Applications
877
Issued Applications
744
Pending Applications
34
Abandoned Applications
120

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 2380224 [patent_doc_number] => 04662800 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1987-05-05 [patent_title] => 'Grain and fertilizer collector' [patent_app_type] => 1 [patent_app_number] => 6/630798 [patent_app_country] => US [patent_app_date] => 1984-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 2499 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 358 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/662/04662800.pdf [firstpage_image] =>[orig_patent_app_number] => 630798 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/630798
Grain and fertilizer collector Jul 12, 1984 Issued
Array ( [id] => 2272380 [patent_doc_number] => 04610575 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-09-09 [patent_title] => 'Apparatus for removing quantities of fiber from bales for blending purposes and the like' [patent_app_type] => 1 [patent_app_number] => 6/628038 [patent_app_country] => US [patent_app_date] => 1984-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 17 [patent_no_of_words] => 4278 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/610/04610575.pdf [firstpage_image] =>[orig_patent_app_number] => 628038 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/628038
Apparatus for removing quantities of fiber from bales for blending purposes and the like Jul 4, 1984 Issued
Array ( [id] => 2214888 [patent_doc_number] => 04578002 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-03-25 [patent_title] => 'Transport apparatus for flat articles' [patent_app_type] => 1 [patent_app_number] => 6/619769 [patent_app_country] => US [patent_app_date] => 1984-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1602 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/578/04578002.pdf [firstpage_image] =>[orig_patent_app_number] => 619769 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/619769
Transport apparatus for flat articles Jun 11, 1984 Issued
Array ( [id] => 2217181 [patent_doc_number] => 04609309 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-09-02 [patent_title] => 'Process and apparatus for the transport of powdered or particulate material' [patent_app_type] => 1 [patent_app_number] => 6/619599 [patent_app_country] => US [patent_app_date] => 1984-06-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2503 [patent_no_of_claims] => 5 [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/04/609/04609309.pdf [firstpage_image] =>[orig_patent_app_number] => 619599 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/619599
Process and apparatus for the transport of powdered or particulate material Jun 10, 1984 Issued
Array ( [id] => 2130660 [patent_doc_number] => 04551042 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-11-05 [patent_title] => 'Transfer system for fish and similar articles' [patent_app_type] => 1 [patent_app_number] => 6/611179 [patent_app_country] => US [patent_app_date] => 1984-05-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2729 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 29 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/551/04551042.pdf [firstpage_image] =>[orig_patent_app_number] => 611179 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/611179
Transfer system for fish and similar articles May 16, 1984 Issued
Array ( [id] => 2171687 [patent_doc_number] => 04547099 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-10-15 [patent_title] => 'Gate of the pipe-line of a pneumatic conveyer' [patent_app_type] => 1 [patent_app_number] => 6/606837 [patent_app_country] => US [patent_app_date] => 1984-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 1385 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/547/04547099.pdf [firstpage_image] =>[orig_patent_app_number] => 606837 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/606837
Gate of the pipe-line of a pneumatic conveyer Apr 12, 1984 Issued
Array ( [id] => 2237657 [patent_doc_number] => 04621952 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-11-11 [patent_title] => 'Fluidized bed discharge process' [patent_app_type] => 1 [patent_app_number] => 6/596366 [patent_app_country] => US [patent_app_date] => 1984-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2520 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 203 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/621/04621952.pdf [firstpage_image] =>[orig_patent_app_number] => 596366 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/596366
Fluidized bed discharge process Apr 2, 1984 Issued
Array ( [id] => 2172391 [patent_doc_number] => 04557636 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-12-10 [patent_title] => 'Injection of solids into a high pressure slurry stream' [patent_app_type] => 1 [patent_app_number] => 6/593019 [patent_app_country] => US [patent_app_date] => 1984-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3385 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 213 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/557/04557636.pdf [firstpage_image] =>[orig_patent_app_number] => 593019 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/593019
Injection of solids into a high pressure slurry stream Mar 25, 1984 Issued
Array ( [id] => 2194774 [patent_doc_number] => 04548529 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-10-22 [patent_title] => 'Process for transporting particulate material from a low pressure zone to a gas-containing elevated pressure zone' [patent_app_type] => 1 [patent_app_number] => 6/579738 [patent_app_country] => US [patent_app_date] => 1984-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2560 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 255 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/548/04548529.pdf [firstpage_image] =>[orig_patent_app_number] => 579738 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/579738
Process for transporting particulate material from a low pressure zone to a gas-containing elevated pressure zone Feb 12, 1984 Issued
Array ( [id] => 2251613 [patent_doc_number] => 04588330 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-05-13 [patent_title] => 'Device for starting and braking containers and locking them after they are stopped' [patent_app_type] => 1 [patent_app_number] => 6/584948 [patent_app_country] => US [patent_app_date] => 1984-02-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 3439 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 237 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/588/04588330.pdf [firstpage_image] =>[orig_patent_app_number] => 584948 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/584948
Device for starting and braking containers and locking them after they are stopped Feb 1, 1984 Issued
Array ( [id] => 2191253 [patent_doc_number] => 04541518 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-09-17 [patent_title] => 'Material flow rail' [patent_app_type] => 1 [patent_app_number] => 6/575769 [patent_app_country] => US [patent_app_date] => 1984-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 2085 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 199 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/541/04541518.pdf [firstpage_image] =>[orig_patent_app_number] => 575769 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/575769
Material flow rail Jan 31, 1984 Issued
Array ( [id] => 2257278 [patent_doc_number] => 04564318 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-01-14 [patent_title] => 'Gate of the pipe-line of a pneumatic conveyer used for transporting containers' [patent_app_type] => 1 [patent_app_number] => 6/584258 [patent_app_country] => US [patent_app_date] => 1984-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2320 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 249 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/564/04564318.pdf [firstpage_image] =>[orig_patent_app_number] => 584258 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/584258
Gate of the pipe-line of a pneumatic conveyer used for transporting containers Jan 30, 1984 Issued
Array ( [id] => 2216836 [patent_doc_number] => 04582454 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-04-15 [patent_title] => 'Apparatus and method for feeding pulverized coal into an air line to a blast furnace' [patent_app_type] => 1 [patent_app_number] => 6/566729 [patent_app_country] => US [patent_app_date] => 1983-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3045 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/582/04582454.pdf [firstpage_image] =>[orig_patent_app_number] => 566729 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/566729
Apparatus and method for feeding pulverized coal into an air line to a blast furnace Dec 28, 1983 Issued
Array ( [id] => 2191970 [patent_doc_number] => 04541570 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-09-17 [patent_title] => 'Endgate for manure spreader' [patent_app_type] => 1 [patent_app_number] => 6/558824 [patent_app_country] => US [patent_app_date] => 1983-12-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 2489 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 273 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/541/04541570.pdf [firstpage_image] =>[orig_patent_app_number] => 558824 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/558824
Endgate for manure spreader Dec 6, 1983 Issued
Array ( [id] => 2140009 [patent_doc_number] => 04552489 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-11-12 [patent_title] => 'Vehicular mobile high capacity pneumatic conveyor' [patent_app_type] => 1 [patent_app_number] => 6/551103 [patent_app_country] => US [patent_app_date] => 1983-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 4604 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 324 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/552/04552489.pdf [firstpage_image] =>[orig_patent_app_number] => 551103 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/551103
Vehicular mobile high capacity pneumatic conveyor Nov 13, 1983 Issued
Array ( [id] => 2171783 [patent_doc_number] => 04508204 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-04-02 [patent_title] => 'Gravity feed chute' [patent_app_type] => 1 [patent_app_number] => 6/551227 [patent_app_country] => US [patent_app_date] => 1983-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 1511 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 482 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/508/04508204.pdf [firstpage_image] =>[orig_patent_app_number] => 551227 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/551227
Gravity feed chute Nov 13, 1983 Issued
Array ( [id] => 2244049 [patent_doc_number] => 04605329 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-08-12 [patent_title] => 'Hydraulic transportation of objects' [patent_app_type] => 1 [patent_app_number] => 6/545347 [patent_app_country] => US [patent_app_date] => 1983-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 12 [patent_no_of_words] => 3706 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/605/04605329.pdf [firstpage_image] =>[orig_patent_app_number] => 545347 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/545347
Hydraulic transportation of objects Oct 24, 1983 Issued
Array ( [id] => 2237302 [patent_doc_number] => 04616960 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-10-14 [patent_title] => 'Air conveyor components' [patent_app_type] => 1 [patent_app_number] => 6/543976 [patent_app_country] => US [patent_app_date] => 1983-10-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 21 [patent_no_of_words] => 9631 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 214 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/616/04616960.pdf [firstpage_image] =>[orig_patent_app_number] => 543976 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/543976
Air conveyor components Oct 19, 1983 Issued
Array ( [id] => 2149856 [patent_doc_number] => 04516887 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1985-05-14 [patent_title] => 'Feeder deflection compensation' [patent_app_type] => 1 [patent_app_number] => 6/517747 [patent_app_country] => US [patent_app_date] => 1983-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2013 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/516/04516887.pdf [firstpage_image] =>[orig_patent_app_number] => 517747 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/517747
Feeder deflection compensation Jul 26, 1983 Issued
Array ( [id] => 2210000 [patent_doc_number] => 04614262 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-09-30 [patent_title] => 'Separating chute system' [patent_app_type] => 1 [patent_app_number] => 6/515518 [patent_app_country] => US [patent_app_date] => 1983-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2503 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/614/04614262.pdf [firstpage_image] =>[orig_patent_app_number] => 515518 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/515518
Separating chute system Jul 19, 1983 Issued
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