Search

Richard K. Chang

Examiner (ID: 10963, Phone: (571)270-3368 , Office: P/2464 )

Most Active Art Unit
2464
Art Unit(s)
2464, 2616, 2663
Total Applications
302
Issued Applications
252
Pending Applications
10
Abandoned Applications
46

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 10087845 [patent_doc_number] => 09125205 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-09-01 [patent_title] => 'Method, system and device for determining bandwidth of uplink sounding reference signal' [patent_app_type] => utility [patent_app_number] => 13/056911 [patent_app_country] => US [patent_app_date] => 2009-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 6065 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13056911 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/056911
Method, system and device for determining bandwidth of uplink sounding reference signal Jul 29, 2009 Issued
Array ( [id] => 8573408 [patent_doc_number] => 08340061 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-12-25 [patent_title] => 'Transmission terminal, reception terminal, and information distribution system' [patent_app_type] => utility [patent_app_number] => 12/458795 [patent_app_country] => US [patent_app_date] => 2009-07-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 33 [patent_figures_cnt] => 35 [patent_no_of_words] => 28561 [patent_no_of_claims] => 37 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 163 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12458795 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/458795
Transmission terminal, reception terminal, and information distribution system Jul 21, 2009 Issued
Array ( [id] => 8284381 [patent_doc_number] => 08218492 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-07-10 [patent_title] => 'Apparatus, systems and methods for switching MIMO transmission techniques in wireless communication systems' [patent_app_type] => utility [patent_app_number] => 12/459255 [patent_app_country] => US [patent_app_date] => 2009-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 936 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12459255 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/459255
Apparatus, systems and methods for switching MIMO transmission techniques in wireless communication systems Jun 25, 2009 Issued
Array ( [id] => 8957573 [patent_doc_number] => 08503359 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-08-06 [patent_title] => 'Use of delayed clear-to-send and denial-to-send in directional wireless networks' [patent_app_type] => utility [patent_app_number] => 12/459151 [patent_app_country] => US [patent_app_date] => 2009-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 3036 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12459151 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/459151
Use of delayed clear-to-send and denial-to-send in directional wireless networks Jun 25, 2009 Issued
Array ( [id] => 5494683 [patent_doc_number] => 20090262711 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-10-22 [patent_title] => 'Method of scheduling an uplink packet transmission channel in a mobile communication system' [patent_app_type] => utility [patent_app_number] => 12/457763 [patent_app_country] => US [patent_app_date] => 2009-06-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3305 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0262/20090262711.pdf [firstpage_image] =>[orig_patent_app_number] => 12457763 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/457763
Method of scheduling an uplink packet transmission channel in a mobile communication system Jun 18, 2009 Issued
Array ( [id] => 5366410 [patent_doc_number] => 20090303969 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-12-10 [patent_title] => 'Apparatus and method for employing common control channel and broadcast channel in a broadband wireless communication system with frequency overlay' [patent_app_type] => utility [patent_app_number] => 12/456016 [patent_app_country] => US [patent_app_date] => 2009-06-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 5545 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0303/20090303969.pdf [firstpage_image] =>[orig_patent_app_number] => 12456016 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/456016
Apparatus and method for employing common control channel and broadcast channel in a broadband wireless communication system with frequency overlay Jun 9, 2009 Issued
Array ( [id] => 8353662 [patent_doc_number] => 08248995 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-08-21 [patent_title] => 'Wireless communications using frequency agile radio' [patent_app_type] => utility [patent_app_number] => 12/402191 [patent_app_country] => US [patent_app_date] => 2009-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 9209 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12402191 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/402191
Wireless communications using frequency agile radio Mar 10, 2009 Issued
Array ( [id] => 9705900 [patent_doc_number] => 08830982 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-09-09 [patent_title] => 'System and method for multicarrier uplink control' [patent_app_type] => utility [patent_app_number] => 12/401664 [patent_app_country] => US [patent_app_date] => 2009-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 4958 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12401664 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/401664
System and method for multicarrier uplink control Mar 10, 2009 Issued
Array ( [id] => 5402827 [patent_doc_number] => 20090238141 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-09-24 [patent_title] => 'METHOD AND APPARATUS FOR HANDOVER IN A WIRELESS COMMUNICATION SYSTEM' [patent_app_type] => utility [patent_app_number] => 12/402249 [patent_app_country] => US [patent_app_date] => 2009-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 10076 [patent_no_of_claims] => 50 [patent_no_of_ind_claims] => 10 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0238/20090238141.pdf [firstpage_image] =>[orig_patent_app_number] => 12402249 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/402249
Method and apparatus for handover in a wireless communication system Mar 10, 2009 Issued
Array ( [id] => 5526195 [patent_doc_number] => 20090196272 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-08-06 [patent_title] => 'MOBILE STATION, BASE STATION AND RADIO COMMUNICATION METHOD' [patent_app_type] => utility [patent_app_number] => 12/401741 [patent_app_country] => US [patent_app_date] => 2009-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 24 [patent_no_of_words] => 7232 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0196/20090196272.pdf [firstpage_image] =>[orig_patent_app_number] => 12401741 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/401741
Mobile station, base station and radio communication method Mar 10, 2009 Issued
Array ( [id] => 9234493 [patent_doc_number] => 08599802 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-12-03 [patent_title] => 'Method and apparatus to deliver public warning messages' [patent_app_type] => utility [patent_app_number] => 12/402005 [patent_app_country] => US [patent_app_date] => 2009-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 5087 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12402005 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/402005
Method and apparatus to deliver public warning messages Mar 10, 2009 Issued
Array ( [id] => 9114754 [patent_doc_number] => 08570940 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2013-10-29 [patent_title] => 'Method and system for operating densely-deployed low-cost internet base stations (LCIBs)' [patent_app_type] => utility [patent_app_number] => 12/400920 [patent_app_country] => US [patent_app_date] => 2009-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 8098 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 287 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12400920 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/400920
Method and system for operating densely-deployed low-cost internet base stations (LCIBs) Mar 9, 2009 Issued
Array ( [id] => 8691677 [patent_doc_number] => 08391208 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2013-03-05 [patent_title] => 'Methods of setting mobile internet protocol timer value' [patent_app_type] => utility [patent_app_number] => 12/401609 [patent_app_country] => US [patent_app_date] => 2009-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 7776 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12401609 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/401609
Methods of setting mobile internet protocol timer value Mar 9, 2009 Issued
Array ( [id] => 8622463 [patent_doc_number] => 08355380 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2013-01-15 [patent_title] => 'Mesh power conservation' [patent_app_type] => utility [patent_app_number] => 12/401308 [patent_app_country] => US [patent_app_date] => 2009-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 3205 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 330 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12401308 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/401308
Mesh power conservation Mar 9, 2009 Issued
Array ( [id] => 5532287 [patent_doc_number] => 20090232075 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-09-17 [patent_title] => 'Radio Communication System, Base Station, Mobile Station and Resource Block Allocation Method' [patent_app_type] => utility [patent_app_number] => 12/401164 [patent_app_country] => US [patent_app_date] => 2009-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 4521 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0232/20090232075.pdf [firstpage_image] =>[orig_patent_app_number] => 12401164 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/401164
Radio Communication System, Base Station, Mobile Station and Resource Block Allocation Method Mar 9, 2009 Abandoned
Array ( [id] => 5532321 [patent_doc_number] => 20090232109 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-09-17 [patent_title] => 'Method and System for Optimal Beamforming in Wireless Networks' [patent_app_type] => utility [patent_app_number] => 12/401222 [patent_app_country] => US [patent_app_date] => 2009-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 24 [patent_no_of_words] => 14934 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0232/20090232109.pdf [firstpage_image] =>[orig_patent_app_number] => 12401222 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/401222
Method and system for optimal beamforming in wireless networks Mar 9, 2009 Issued
Array ( [id] => 5484329 [patent_doc_number] => 20090274094 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-11-05 [patent_title] => 'ADVERTISING SUPPORT FOR A PLURALITY OF SERVICE NETWORKS BY A WIRELESS ACCESS POINT' [patent_app_type] => utility [patent_app_number] => 12/344639 [patent_app_country] => US [patent_app_date] => 2008-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3549 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0274/20090274094.pdf [firstpage_image] =>[orig_patent_app_number] => 12344639 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/344639
ADVERTISING SUPPORT FOR A PLURALITY OF SERVICE NETWORKS BY A WIRELESS ACCESS POINT Dec 28, 2008 Abandoned
Array ( [id] => 5574333 [patent_doc_number] => 20090141694 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-04 [patent_title] => 'METHOD FOR CONFIGURING AND MANAGING ACCESS POINT AND ACCESS CONTROLLER' [patent_app_type] => utility [patent_app_number] => 12/344616 [patent_app_country] => US [patent_app_date] => 2008-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 7911 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0141/20090141694.pdf [firstpage_image] =>[orig_patent_app_number] => 12344616 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/344616
Method for configuring and managing access point and access controller Dec 28, 2008 Issued
Array ( [id] => 5484330 [patent_doc_number] => 20090274095 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-11-05 [patent_title] => 'MOBILE WIRELESS COMMUNICATION SYSTEM AND WIRELESS BASE STATION' [patent_app_type] => utility [patent_app_number] => 12/344695 [patent_app_country] => US [patent_app_date] => 2008-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5870 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0274/20090274095.pdf [firstpage_image] =>[orig_patent_app_number] => 12344695 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/344695
MOBILE WIRELESS COMMUNICATION SYSTEM AND WIRELESS BASE STATION Dec 28, 2008 Abandoned
Array ( [id] => 5301996 [patent_doc_number] => 20090296648 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-12-03 [patent_title] => 'OPTIMAL USER PAIRING FOR MULTIUSER MIMO' [patent_app_type] => utility [patent_app_number] => 12/344380 [patent_app_country] => US [patent_app_date] => 2008-12-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5348 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0296/20090296648.pdf [firstpage_image] =>[orig_patent_app_number] => 12344380 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/344380
Optimal user pairing for multiuser MIMO Dec 25, 2008 Issued
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