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] => 5277183 [patent_doc_number] => 20090129315 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-05-21 [patent_title] => 'DATA DISCARD FOR RADIO LINK CONTROL IN WIRELESS NETWORKS' [patent_app_type] => utility [patent_app_number] => 12/178015 [patent_app_country] => US [patent_app_date] => 2008-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 9881 [patent_no_of_claims] => 45 [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/A1/0129/20090129315.pdf [firstpage_image] =>[orig_patent_app_number] => 12178015 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/178015
DATA DISCARD FOR RADIO LINK CONTROL IN WIRELESS NETWORKS Jul 22, 2008 Abandoned
Array ( [id] => 9087941 [patent_doc_number] => 08559378 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-10-15 [patent_title] => 'Wireless access system and transmission method' [patent_app_type] => utility [patent_app_number] => 12/177537 [patent_app_country] => US [patent_app_date] => 2008-07-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 4473 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 193 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12177537 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/177537
Wireless access system and transmission method Jul 21, 2008 Issued
Array ( [id] => 5544556 [patent_doc_number] => 20090154433 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-18 [patent_title] => 'LOCAL AREA WIRELESS COMMUNICATION APPARATUS AND METHOD' [patent_app_type] => utility [patent_app_number] => 12/177647 [patent_app_country] => US [patent_app_date] => 2008-07-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3905 [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/A1/0154/20090154433.pdf [firstpage_image] =>[orig_patent_app_number] => 12177647 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/177647
LOCAL AREA WIRELESS COMMUNICATION APPARATUS AND METHOD Jul 21, 2008 Abandoned
Array ( [id] => 5265224 [patent_doc_number] => 20090117909 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-05-07 [patent_title] => 'SOFT HANDOVER METHOD IN MULTIPLE WIRELESS ACCESS NETWORK ENVIRONMENT AND SERVER FOR THE SAME' [patent_app_type] => utility [patent_app_number] => 12/176858 [patent_app_country] => US [patent_app_date] => 2008-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2457 [patent_no_of_claims] => 13 [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/A1/0117/20090117909.pdf [firstpage_image] =>[orig_patent_app_number] => 12176858 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/176858
SOFT HANDOVER METHOD IN MULTIPLE WIRELESS ACCESS NETWORK ENVIRONMENT AND SERVER FOR THE SAME Jul 20, 2008 Abandoned
Array ( [id] => 5408880 [patent_doc_number] => 20090122778 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-05-14 [patent_title] => 'APPARATUS AND METHOD FOR ASSIGNING TIME SLOT FOR TRANSMITTING BEACON IN WIRELESS SENSOR NETWORK' [patent_app_type] => utility [patent_app_number] => 12/176800 [patent_app_country] => US [patent_app_date] => 2008-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3462 [patent_no_of_claims] => 8 [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/A1/0122/20090122778.pdf [firstpage_image] =>[orig_patent_app_number] => 12176800 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/176800
APPARATUS AND METHOD FOR ASSIGNING TIME SLOT FOR TRANSMITTING BEACON IN WIRELESS SENSOR NETWORK Jul 20, 2008 Abandoned
Array ( [id] => 8117635 [patent_doc_number] => 08160037 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-04-17 [patent_title] => 'System and method for reinforcing wireless communication capability within wireless network group' [patent_app_type] => utility [patent_app_number] => 12/176094 [patent_app_country] => US [patent_app_date] => 2008-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 3422 [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/08/160/08160037.pdf [firstpage_image] =>[orig_patent_app_number] => 12176094 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/176094
System and method for reinforcing wireless communication capability within wireless network group Jul 17, 2008 Issued
Array ( [id] => 4852824 [patent_doc_number] => 20080318567 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-12-25 [patent_title] => 'METHOD AND SYSTEM FOR SYNCHRONIZATION IN COMMUNICATION SYSTEM' [patent_app_type] => utility [patent_app_number] => 12/175685 [patent_app_country] => US [patent_app_date] => 2008-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5527 [patent_no_of_claims] => 21 [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/A1/0318/20080318567.pdf [firstpage_image] =>[orig_patent_app_number] => 12175685 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/175685
Method and system for synchronization in communication system Jul 17, 2008 Issued
Array ( [id] => 5416687 [patent_doc_number] => 20090042574 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-02-12 [patent_title] => 'APPARATUS AND METHOD FOR PERFORMING HANDOVER IN A COMMUNICATION SYSTEM' [patent_app_type] => utility [patent_app_number] => 12/175949 [patent_app_country] => US [patent_app_date] => 2008-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 4891 [patent_no_of_claims] => 18 [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/A1/0042/20090042574.pdf [firstpage_image] =>[orig_patent_app_number] => 12175949 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/175949
Apparatus and method for performing handover in a communication system Jul 17, 2008 Issued
Array ( [id] => 4959085 [patent_doc_number] => 20080273509 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-11-06 [patent_title] => 'Method, System And Device For Optimizing Routing In Mobile IPv6' [patent_app_type] => utility [patent_app_number] => 12/176003 [patent_app_country] => US [patent_app_date] => 2008-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5159 [patent_no_of_claims] => 28 [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/A1/0273/20080273509.pdf [firstpage_image] =>[orig_patent_app_number] => 12176003 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/176003
Method, system and device for optimizing routing in mobile IPv6 Jul 17, 2008 Issued
Array ( [id] => 7732487 [patent_doc_number] => 08102828 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-01-24 [patent_title] => 'Method and system for establishing tunnel in WLAN' [patent_app_type] => utility [patent_app_number] => 12/176077 [patent_app_country] => US [patent_app_date] => 2008-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 12 [patent_no_of_words] => 4087 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 211 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/102/08102828.pdf [firstpage_image] =>[orig_patent_app_number] => 12176077 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/176077
Method and system for establishing tunnel in WLAN Jul 17, 2008 Issued
Array ( [id] => 5314905 [patent_doc_number] => 20090279503 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-11-12 [patent_title] => 'SYSTEMS AND METHODS FOR MULTIMODE WIRELESS COMMUNICATION HANDOFF' [patent_app_type] => utility [patent_app_number] => 12/176304 [patent_app_country] => US [patent_app_date] => 2008-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 18 [patent_no_of_words] => 8638 [patent_no_of_claims] => 110 [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/A1/0279/20090279503.pdf [firstpage_image] =>[orig_patent_app_number] => 12176304 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/176304
SYSTEMS AND METHODS FOR MULTIMODE WIRELESS COMMUNICATION HANDOFF Jul 17, 2008 Abandoned
Array ( [id] => 6333222 [patent_doc_number] => 20100246503 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-09-30 [patent_title] => 'REDUCING INTERFERENCE IN A TELECOMMUNICATIONS NETWORK' [patent_app_type] => utility [patent_app_number] => 12/452581 [patent_app_country] => US [patent_app_date] => 2008-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2947 [patent_no_of_claims] => 21 [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/A1/0246/20100246503.pdf [firstpage_image] =>[orig_patent_app_number] => 12452581 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/452581
Reducing interference in a telecommunications network Jul 9, 2008 Issued
Array ( [id] => 6278249 [patent_doc_number] => 20100118991 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-05-13 [patent_title] => 'Method For Allocating Radio Resource In Wireless Communication System And Method For Transmitting Or Receiving Data Using The Same' [patent_app_type] => utility [patent_app_number] => 12/452615 [patent_app_country] => US [patent_app_date] => 2008-07-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 10660 [patent_no_of_claims] => 14 [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/A1/0118/20100118991.pdf [firstpage_image] =>[orig_patent_app_number] => 12452615 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/452615
Method for allocating radio resource in wireless communication system and method for transmitting or receiving data using the same Jul 8, 2008 Issued
Array ( [id] => 8084873 [patent_doc_number] => 08149768 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-04-03 [patent_title] => 'Method of transmitting data in mobile communication system' [patent_app_type] => utility [patent_app_number] => 12/452183 [patent_app_country] => US [patent_app_date] => 2008-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 7787 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/149/08149768.pdf [firstpage_image] =>[orig_patent_app_number] => 12452183 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/452183
Method of transmitting data in mobile communication system Jun 19, 2008 Issued
Array ( [id] => 6619749 [patent_doc_number] => 20100172289 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-07-08 [patent_title] => 'METHOD AND DEVICE FOR UTILIZING A CIRCUIT SWITCHED SERVICE IN A PACKET SWITCHED DOMAIN AND COMNUNICATION SYSTEM COMPRISING SUCH DEVICE' [patent_app_type] => utility [patent_app_number] => 12/452477 [patent_app_country] => US [patent_app_date] => 2008-06-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2654 [patent_no_of_claims] => 2 [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/A1/0172/20100172289.pdf [firstpage_image] =>[orig_patent_app_number] => 12452477 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/452477
METHOD AND DEVICE FOR UTILIZING A CIRCUIT SWITCHED SERVICE IN A PACKET SWITCHED DOMAIN AND COMNUNICATION SYSTEM COMPRISING SUCH DEVICE Jun 18, 2008 Abandoned
Array ( [id] => 7196873 [patent_doc_number] => 20050041623 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-02-24 [patent_title] => 'Method and system for managing radio resources in a time-slotted communication system' [patent_app_type] => utility [patent_app_number] => 10/886735 [patent_app_country] => US [patent_app_date] => 2004-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2683 [patent_no_of_claims] => 40 [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/A1/0041/20050041623.pdf [firstpage_image] =>[orig_patent_app_number] => 10886735 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/886735
Method and system for managing radio resources in a time-slotted communication system Jul 7, 2004 Issued
Array ( [id] => 569871 [patent_doc_number] => 07161909 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-01-09 [patent_title] => 'Method and system for acknowledging the receipt of a transmitted data stream in a wireless communication system' [patent_app_type] => utility [patent_app_number] => 10/830990 [patent_app_country] => US [patent_app_date] => 2004-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 4869 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/161/07161909.pdf [firstpage_image] =>[orig_patent_app_number] => 10830990 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/830990
Method and system for acknowledging the receipt of a transmitted data stream in a wireless communication system Apr 22, 2004 Issued
Array ( [id] => 944889 [patent_doc_number] => 06967945 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-11-22 [patent_title] => 'Method and system of communications using a pulse transmission protocol' [patent_app_type] => utility [patent_app_number] => 10/801040 [patent_app_country] => US [patent_app_date] => 2004-03-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 7273 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 18 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/967/06967945.pdf [firstpage_image] =>[orig_patent_app_number] => 10801040 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/801040
Method and system of communications using a pulse transmission protocol Mar 15, 2004 Issued
Array ( [id] => 6911197 [patent_doc_number] => 20050174955 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-08-11 [patent_title] => 'Method for preserving wireless resources in a wireless local area network' [patent_app_type] => utility [patent_app_number] => 10/772832 [patent_app_country] => US [patent_app_date] => 2004-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2678 [patent_no_of_claims] => 12 [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/A1/0174/20050174955.pdf [firstpage_image] =>[orig_patent_app_number] => 10772832 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/772832
Method for preserving wireless resources in a wireless local area network Feb 4, 2004 Issued
Array ( [id] => 416854 [patent_doc_number] => 07280486 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-10-09 [patent_title] => 'Detection of forwarding problems for external prefixes' [patent_app_type] => utility [patent_app_number] => 10/752735 [patent_app_country] => US [patent_app_date] => 2004-01-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 12 [patent_no_of_words] => 8411 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 285 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/280/07280486.pdf [firstpage_image] =>[orig_patent_app_number] => 10752735 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/752735
Detection of forwarding problems for external prefixes Jan 6, 2004 Issued
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