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] => 2294760 [patent_doc_number] => 04641738 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1987-02-10 [patent_title] => 'Momentum arresting device for an integrated circuit tester' [patent_app_type] => 1 [patent_app_number] => 6/800097 [patent_app_country] => US [patent_app_date] => 1985-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2753 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 322 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/641/04641738.pdf [firstpage_image] =>[orig_patent_app_number] => 800097 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/800097
Momentum arresting device for an integrated circuit tester Nov 19, 1985 Issued
Array ( [id] => 2342344 [patent_doc_number] => 04648754 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1987-03-10 [patent_title] => 'Arrangement for transporting fiber flocks' [patent_app_type] => 1 [patent_app_number] => 6/770650 [patent_app_country] => US [patent_app_date] => 1985-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 4734 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 276 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/648/04648754.pdf [firstpage_image] =>[orig_patent_app_number] => 770650 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/770650
Arrangement for transporting fiber flocks Aug 27, 1985 Issued
Array ( [id] => 2276233 [patent_doc_number] => 04619561 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-10-28 [patent_title] => 'Method and apparatus for conveying particulate matter' [patent_app_type] => 1 [patent_app_number] => 6/767368 [patent_app_country] => US [patent_app_date] => 1985-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1815 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/619/04619561.pdf [firstpage_image] =>[orig_patent_app_number] => 767368 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/767368
Method and apparatus for conveying particulate matter Aug 19, 1985 Issued
Array ( [id] => 2208485 [patent_doc_number] => 04599016 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-07-08 [patent_title] => 'Cyclone apparatus for pneumatically moving granular matter' [patent_app_type] => 1 [patent_app_number] => 6/754230 [patent_app_country] => US [patent_app_date] => 1985-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 1967 [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/04/599/04599016.pdf [firstpage_image] =>[orig_patent_app_number] => 754230 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/754230
Cyclone apparatus for pneumatically moving granular matter Jul 11, 1985 Issued
Array ( [id] => 2229995 [patent_doc_number] => 04573563 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-03-04 [patent_title] => 'Transport roller, especially for transporting paper' [patent_app_type] => 1 [patent_app_number] => 6/746368 [patent_app_country] => US [patent_app_date] => 1985-06-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 1772 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/573/04573563.pdf [firstpage_image] =>[orig_patent_app_number] => 746368 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/746368
Transport roller, especially for transporting paper Jun 18, 1985 Issued
Array ( [id] => 2216848 [patent_doc_number] => 04582455 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-04-15 [patent_title] => 'Pneumatic transporters' [patent_app_type] => 1 [patent_app_number] => 6/746002 [patent_app_country] => US [patent_app_date] => 1985-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1898 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/582/04582455.pdf [firstpage_image] =>[orig_patent_app_number] => 746002 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/746002
Pneumatic transporters Jun 17, 1985 Issued
Array ( [id] => 2272585 [patent_doc_number] => 04601345 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-07-22 [patent_title] => 'Mixing and drop system for fire retardants' [patent_app_type] => 1 [patent_app_number] => 6/742955 [patent_app_country] => US [patent_app_date] => 1985-06-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1969 [patent_no_of_claims] => 2 [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/04/601/04601345.pdf [firstpage_image] =>[orig_patent_app_number] => 742955 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/742955
Mixing and drop system for fire retardants Jun 9, 1985 Issued
Array ( [id] => 2303123 [patent_doc_number] => 04637472 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1987-01-20 [patent_title] => 'Rapid discharge extinguisher' [patent_app_type] => 1 [patent_app_number] => 6/741919 [patent_app_country] => US [patent_app_date] => 1985-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1630 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/637/04637472.pdf [firstpage_image] =>[orig_patent_app_number] => 741919 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/741919
Rapid discharge extinguisher Jun 5, 1985 Issued
Array ( [id] => 2230625 [patent_doc_number] => 04596289 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-06-24 [patent_title] => 'Quick response automatic fire sprinkler head' [patent_app_type] => 1 [patent_app_number] => 6/732677 [patent_app_country] => US [patent_app_date] => 1985-05-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 11 [patent_no_of_words] => 7522 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 600 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/596/04596289.pdf [firstpage_image] =>[orig_patent_app_number] => 732677 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/732677
Quick response automatic fire sprinkler head May 9, 1985 Issued
Array ( [id] => 2300797 [patent_doc_number] => 04645056 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1987-02-24 [patent_title] => 'Material flow rail' [patent_app_type] => 1 [patent_app_number] => 6/726842 [patent_app_country] => US [patent_app_date] => 1985-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 2085 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/645/04645056.pdf [firstpage_image] =>[orig_patent_app_number] => 726842 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/726842
Material flow rail Apr 23, 1985 Issued
Array ( [id] => 2256124 [patent_doc_number] => 04579320 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-04-01 [patent_title] => 'Load supporting member' [patent_app_type] => 1 [patent_app_number] => 6/725678 [patent_app_country] => US [patent_app_date] => 1985-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 21 [patent_no_of_words] => 9629 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/579/04579320.pdf [firstpage_image] =>[orig_patent_app_number] => 725678 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/725678
Load supporting member Apr 21, 1985 Issued
Array ( [id] => 2210833 [patent_doc_number] => 04630682 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-12-23 [patent_title] => 'Rapid response sprinkler head' [patent_app_type] => 1 [patent_app_number] => 6/703979 [patent_app_country] => US [patent_app_date] => 1985-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 2178 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/630/04630682.pdf [firstpage_image] =>[orig_patent_app_number] => 703979 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/703979
Rapid response sprinkler head Feb 20, 1985 Issued
Array ( [id] => 2237941 [patent_doc_number] => 04576526 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-03-18 [patent_title] => 'Arrangement for supplying powdered material to a spraying device' [patent_app_type] => 1 [patent_app_number] => 6/693220 [patent_app_country] => US [patent_app_date] => 1985-01-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2098 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 325 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/576/04576526.pdf [firstpage_image] =>[orig_patent_app_number] => 693220 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/693220
Arrangement for supplying powdered material to a spraying device Jan 17, 1985 Issued
Array ( [id] => 2272911 [patent_doc_number] => 04619328 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-10-28 [patent_title] => 'Fire extinguisher valve with pressure indicator' [patent_app_type] => 1 [patent_app_number] => 6/675630 [patent_app_country] => US [patent_app_date] => 1984-11-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3113 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 243 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/619/04619328.pdf [firstpage_image] =>[orig_patent_app_number] => 675630 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/675630
Fire extinguisher valve with pressure indicator Nov 27, 1984 Issued
Array ( [id] => 2269479 [patent_doc_number] => 04625808 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-12-02 [patent_title] => 'Device for coupling fire extinguishers to closed-off compartments' [patent_app_type] => 1 [patent_app_number] => 6/673708 [patent_app_country] => US [patent_app_date] => 1984-11-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 2893 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 258 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/625/04625808.pdf [firstpage_image] =>[orig_patent_app_number] => 673708 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/673708
Device for coupling fire extinguishers to closed-off compartments Nov 20, 1984 Issued
Array ( [id] => 2307225 [patent_doc_number] => 04637760 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1987-01-20 [patent_title] => 'Apparatus for transporting articles by fluid flow through a pipe system' [patent_app_type] => 1 [patent_app_number] => 6/663759 [patent_app_country] => US [patent_app_date] => 1984-10-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 3505 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 336 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/637/04637760.pdf [firstpage_image] =>[orig_patent_app_number] => 663759 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/663759
Apparatus for transporting articles by fluid flow through a pipe system Oct 21, 1984 Issued
Array ( [id] => 2247607 [patent_doc_number] => 04602742 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-07-29 [patent_title] => 'Mobile spraying unit with selectable spray position' [patent_app_type] => 1 [patent_app_number] => 6/658582 [patent_app_country] => US [patent_app_date] => 1984-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 9 [patent_no_of_words] => 3059 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 317 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/602/04602742.pdf [firstpage_image] =>[orig_patent_app_number] => 658582 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/658582
Mobile spraying unit with selectable spray position Oct 8, 1984 Issued
Array ( [id] => 2213048 [patent_doc_number] => 04595145 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-06-17 [patent_title] => 'Air distribution apparatus for a fluid catalytic cracking catalyst regenerator' [patent_app_type] => 1 [patent_app_number] => 6/655802 [patent_app_country] => US [patent_app_date] => 1984-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2178 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/595/04595145.pdf [firstpage_image] =>[orig_patent_app_number] => 655802 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/655802
Air distribution apparatus for a fluid catalytic cracking catalyst regenerator Sep 30, 1984 Issued
Array ( [id] => 2253970 [patent_doc_number] => 04618295 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-10-21 [patent_title] => 'Plenum chamber flow restrictor and check valve' [patent_app_type] => 1 [patent_app_number] => 6/644083 [patent_app_country] => US [patent_app_date] => 1984-08-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2790 [patent_no_of_claims] => 2 [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/04/618/04618295.pdf [firstpage_image] =>[orig_patent_app_number] => 644083 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/644083
Plenum chamber flow restrictor and check valve Aug 23, 1984 Issued
Array ( [id] => 2264502 [patent_doc_number] => 04583885 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1986-04-22 [patent_title] => 'Vacuum receiver' [patent_app_type] => 1 [patent_app_number] => 6/641133 [patent_app_country] => US [patent_app_date] => 1984-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2992 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 403 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/583/04583885.pdf [firstpage_image] =>[orig_patent_app_number] => 641133 [rel_patent_id] =>[rel_patent_doc_number] =>)
06/641133
Vacuum receiver Aug 14, 1984 Issued
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