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] => 5942671 [patent_doc_number] => 20110103291 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-05-05 [patent_title] => 'INTRA-SUBFRAME TIME MULTIPLEXING' [patent_app_type] => utility [patent_app_number] => 12/712413 [patent_app_country] => US [patent_app_date] => 2010-02-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 12529 [patent_no_of_claims] => 22 [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/A1/0103/20110103291.pdf [firstpage_image] =>[orig_patent_app_number] => 12712413 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/712413
Intra-subframe time multiplexing Feb 24, 2010 Issued
Array ( [id] => 9101310 [patent_doc_number] => 08565200 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-10-22 [patent_title] => 'Method of exchanging message and devices in wireless network' [patent_app_type] => utility [patent_app_number] => 12/712155 [patent_app_country] => US [patent_app_date] => 2010-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 21 [patent_no_of_words] => 12223 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 188 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12712155 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/712155
Method of exchanging message and devices in wireless network Feb 23, 2010 Issued
Array ( [id] => 6590653 [patent_doc_number] => 20100097974 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-04-22 [patent_title] => 'Method and device for realizing paging in mobile switching center pool' [patent_app_type] => utility [patent_app_number] => 12/642024 [patent_app_country] => US [patent_app_date] => 2009-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 5888 [patent_no_of_claims] => 12 [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/A1/0097/20100097974.pdf [firstpage_image] =>[orig_patent_app_number] => 12642024 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/642024
Method and device for realizing paging in mobile switching center pool Dec 17, 2009 Issued
Array ( [id] => 10012048 [patent_doc_number] => 09055591 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-06-09 [patent_title] => 'Scheduling method of wireless communication system and apparatus adapted thereto' [patent_app_type] => utility [patent_app_number] => 12/642096 [patent_app_country] => US [patent_app_date] => 2009-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4066 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12642096 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/642096
Scheduling method of wireless communication system and apparatus adapted thereto Dec 17, 2009 Issued
Array ( [id] => 6287091 [patent_doc_number] => 20100157943 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-06-24 [patent_title] => 'ACCESS POINT HANDOVER CONTROL BASED ON CLOSED SUBSCRIBER GROUP SUBSCRIPTION INFORMATION' [patent_app_type] => utility [patent_app_number] => 12/642277 [patent_app_country] => US [patent_app_date] => 2009-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 10904 [patent_no_of_claims] => 49 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0157/20100157943.pdf [firstpage_image] =>[orig_patent_app_number] => 12642277 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/642277
Access point handover control based on closed subscriber group subscription information Dec 17, 2009 Issued
Array ( [id] => 5951275 [patent_doc_number] => 20110032864 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-02-10 [patent_title] => 'METHODS OF PERFORMING COOPERATIVE COMMUNICATION IN WIRELESS LANs' [patent_app_type] => utility [patent_app_number] => 12/642046 [patent_app_country] => US [patent_app_date] => 2009-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 6939 [patent_no_of_claims] => 26 [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/A1/0032/20110032864.pdf [firstpage_image] =>[orig_patent_app_number] => 12642046 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/642046
Methods of performing cooperative communication in wireless LANs Dec 17, 2009 Issued
Array ( [id] => 11309133 [patent_doc_number] => 09516553 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2016-12-06 [patent_title] => 'Handover control based on closed subscriber group subscription information' [patent_app_type] => utility [patent_app_number] => 12/642292 [patent_app_country] => US [patent_app_date] => 2009-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 15 [patent_no_of_words] => 10895 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12642292 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/642292
Handover control based on closed subscriber group subscription information Dec 17, 2009 Issued
Array ( [id] => 6287035 [patent_doc_number] => 20100157924 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-06-24 [patent_title] => 'MU-MIMO-OFDMA SYSTEMS AND METHODS FOR SERVICING OVERLAPPING CO-SCHEDULED USERS' [patent_app_type] => utility [patent_app_number] => 12/642126 [patent_app_country] => US [patent_app_date] => 2009-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 14851 [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/A1/0157/20100157924.pdf [firstpage_image] =>[orig_patent_app_number] => 12642126 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/642126
MU-MIMO-OFDMA systems and methods for servicing overlapping co-scheduled users Dec 17, 2009 Issued
Array ( [id] => 6286860 [patent_doc_number] => 20100157865 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-06-24 [patent_title] => 'Power-Save for Wireless Networks' [patent_app_type] => utility [patent_app_number] => 12/642253 [patent_app_country] => US [patent_app_date] => 2009-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4983 [patent_no_of_claims] => 30 [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/A1/0157/20100157865.pdf [firstpage_image] =>[orig_patent_app_number] => 12642253 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/642253
Power-save for wireless networks Dec 17, 2009 Issued
Array ( [id] => 9429426 [patent_doc_number] => 08705508 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-04-22 [patent_title] => 'Method and system for performing time synchronization between nodes in wireless communication system' [patent_app_type] => utility [patent_app_number] => 12/641864 [patent_app_country] => US [patent_app_date] => 2009-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5657 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12641864 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/641864
Method and system for performing time synchronization between nodes in wireless communication system Dec 17, 2009 Issued
Array ( [id] => 6591345 [patent_doc_number] => 20100098029 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-04-22 [patent_title] => 'METHOD, BASE STATION AND RELAY STATION FOR SUPPORTING MOBILE STATION RANGING' [patent_app_type] => utility [patent_app_number] => 12/641970 [patent_app_country] => US [patent_app_date] => 2009-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 6319 [patent_no_of_claims] => 25 [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/A1/0098/20100098029.pdf [firstpage_image] =>[orig_patent_app_number] => 12641970 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/641970
Method, base station and relay station for supporting mobile station ranging Dec 17, 2009 Issued
Array ( [id] => 6211186 [patent_doc_number] => 20110134872 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-06-09 [patent_title] => 'BASE STATION AND TERMINAL' [patent_app_type] => utility [patent_app_number] => 13/057435 [patent_app_country] => US [patent_app_date] => 2009-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 15231 [patent_no_of_claims] => 4 [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/A1/0134/20110134872.pdf [firstpage_image] =>[orig_patent_app_number] => 13057435 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/057435
BASE STATION AND TERMINAL Aug 6, 2009 Abandoned
Array ( [id] => 6173101 [patent_doc_number] => 20110176503 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-07-21 [patent_title] => 'TECHNIQUES FOR DYNAMICALLY SWITCHING BETWEEN SYNCHRONOUS AND ASYNCHRONOUS OPERATION MODES IN BODY AREA NETWORKS' [patent_app_type] => utility [patent_app_number] => 13/058010 [patent_app_country] => US [patent_app_date] => 2009-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3800 [patent_no_of_claims] => 15 [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/A1/0176/20110176503.pdf [firstpage_image] =>[orig_patent_app_number] => 13058010 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/058010
Techniques for dynamically switching between synchronous and asynchronous operation modes in body area networks Aug 6, 2009 Issued
Array ( [id] => 7572399 [patent_doc_number] => 20110268055 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-11-03 [patent_title] => 'TECHNIQUES FOR SUPPORTING HARMONIZED CO-EXISTENCE OF MULTIPLE CO-LOCATED BODY AREA NETWORKS' [patent_app_type] => utility [patent_app_number] => 13/058006 [patent_app_country] => US [patent_app_date] => 2009-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3662 [patent_no_of_claims] => 15 [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/A1/0268/20110268055.pdf [firstpage_image] =>[orig_patent_app_number] => 13058006 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/058006
Techniques for supporting harmonized co-existence of multiple co-located body area networks Aug 6, 2009 Issued
Array ( [id] => 6211179 [patent_doc_number] => 20110134871 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-06-09 [patent_title] => 'COMMUNICATION SYSTEM, MOBILE STATION DEVICE, BASE STATION DEVICE, AND COMMUNICATION METHOD' [patent_app_type] => utility [patent_app_number] => 13/057258 [patent_app_country] => US [patent_app_date] => 2009-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 24 [patent_no_of_words] => 17791 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0134/20110134871.pdf [firstpage_image] =>[orig_patent_app_number] => 13057258 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/057258
Communication system, mobile station device, base station device, and communication method Aug 5, 2009 Issued
Array ( [id] => 6211177 [patent_doc_number] => 20110134870 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-06-09 [patent_title] => 'FREQUENCY BAND ALLOCATION METHOD AND TRANSMISSION DEVICE' [patent_app_type] => utility [patent_app_number] => 13/057254 [patent_app_country] => US [patent_app_date] => 2009-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 6738 [patent_no_of_claims] => 12 [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/A1/0134/20110134870.pdf [firstpage_image] =>[orig_patent_app_number] => 13057254 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/057254
Frequency band allocation method and transmission device Aug 5, 2009 Issued
Array ( [id] => 6194692 [patent_doc_number] => 20110026446 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-02-03 [patent_title] => 'Variable short interframe space' [patent_app_type] => utility [patent_app_number] => 12/459181 [patent_app_country] => US [patent_app_date] => 2009-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 7130 [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/A1/0026/20110026446.pdf [firstpage_image] =>[orig_patent_app_number] => 12459181 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/459181
Variable short interframe space Aug 2, 2009 Issued
Array ( [id] => 10878008 [patent_doc_number] => 08902801 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-12-02 [patent_title] => 'Universal interface for a wireless adapter' [patent_app_type] => utility [patent_app_number] => 12/451952 [patent_app_country] => US [patent_app_date] => 2009-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3853 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 298 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12451952 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/451952
Universal interface for a wireless adapter Aug 2, 2009 Issued
Array ( [id] => 9939251 [patent_doc_number] => 08989072 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-03-24 [patent_title] => 'Radio base station and mobile communication method for determining a communication parameter' [patent_app_type] => utility [patent_app_number] => 13/057031 [patent_app_country] => US [patent_app_date] => 2009-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 4334 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 251 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13057031 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/057031
Radio base station and mobile communication method for determining a communication parameter Jul 30, 2009 Issued
Array ( [id] => 10571069 [patent_doc_number] => 09294257 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2016-03-22 [patent_title] => 'Method and apparatus for allocating resource of multiple carriers in OFDMA system' [patent_app_type] => utility [patent_app_number] => 13/056864 [patent_app_country] => US [patent_app_date] => 2009-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 18 [patent_no_of_words] => 8499 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13056864 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/056864
Method and apparatus for allocating resource of multiple carriers in OFDMA system Jul 29, 2009 Issued
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