Search

Richard K. Chang

Examiner (ID: 15304, Phone: (571)270-3368 , Office: P/2464 )

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

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 8636929 [patent_doc_number] => 20130028732 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-01-31 [patent_title] => 'ROLLING BEARING DEVICE HAVING A HYDRAULIC DAMPING DEVICE' [patent_app_type] => utility [patent_app_number] => 13/640370 [patent_app_country] => US [patent_app_date] => 2011-05-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2444 [patent_no_of_claims] => 10 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13640370 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/640370
ROLLING BEARING DEVICE HAVING A HYDRAULIC DAMPING DEVICE May 1, 2011 Abandoned
Array ( [id] => 8683749 [patent_doc_number] => 20130052033 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-02-28 [patent_title] => 'WIND TURBINE PROVIDED WITH A SLAT ASSEMBLY' [patent_app_type] => utility [patent_app_number] => 13/640635 [patent_app_country] => US [patent_app_date] => 2011-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 9342 [patent_no_of_claims] => 25 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13640635 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/640635
Wind turbine provided with a slat assembly Apr 26, 2011 Issued
Array ( [id] => 11231656 [patent_doc_number] => 09458880 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2016-10-04 [patent_title] => 'Bearing element for supporting the rotor hub of a wind turbine' [patent_app_type] => utility [patent_app_number] => 13/640613 [patent_app_country] => US [patent_app_date] => 2011-04-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 6476 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13640613 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/640613
Bearing element for supporting the rotor hub of a wind turbine Apr 13, 2011 Issued
Array ( [id] => 8648695 [patent_doc_number] => 20130034425 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-02-07 [patent_title] => 'METHOD FOR ADAPTING THE AIR FLOW OF A TURBINE ENGINE HAVING A CENTRIFUGAL COMPRESSOR AND DIFFUSER FOR IMPLEMENTING SAME' [patent_app_type] => utility [patent_app_number] => 13/640978 [patent_app_country] => US [patent_app_date] => 2011-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3040 [patent_no_of_claims] => 11 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13640978 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/640978
METHOD FOR ADAPTING THE AIR FLOW OF A TURBINE ENGINE HAVING A CENTRIFUGAL COMPRESSOR AND DIFFUSER FOR IMPLEMENTING SAME Apr 12, 2011 Abandoned
Array ( [id] => 10856262 [patent_doc_number] => 08882451 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-11-11 [patent_title] => 'Fan' [patent_app_type] => utility [patent_app_number] => 13/052846 [patent_app_country] => US [patent_app_date] => 2011-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 8075 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 1 [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] => 13052846 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/052846
Fan Mar 20, 2011 Issued
Array ( [id] => 7486990 [patent_doc_number] => 20110236193 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-09-29 [patent_title] => 'TURBOCHARGER BEARING LUBRICATION' [patent_app_type] => utility [patent_app_number] => 13/052370 [patent_app_country] => US [patent_app_date] => 2011-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 2411 [patent_no_of_claims] => 17 [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/A1/0236/20110236193.pdf [firstpage_image] =>[orig_patent_app_number] => 13052370 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/052370
TURBOCHARGER BEARING LUBRICATION Mar 20, 2011 Abandoned
Array ( [id] => 8405289 [patent_doc_number] => 20120237347 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-09-20 [patent_title] => 'Ram Air Turbine with Controlled Vibrational Resonances' [patent_app_type] => utility [patent_app_number] => 13/051213 [patent_app_country] => US [patent_app_date] => 2011-03-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 1894 [patent_no_of_claims] => 29 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13051213 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/051213
Ram Air Turbine with Controlled Vibrational Resonances Mar 17, 2011 Abandoned
Array ( [id] => 7697257 [patent_doc_number] => 20110229333 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-09-22 [patent_title] => 'SHEAR WEB CONNECTION' [patent_app_type] => utility [patent_app_number] => 13/049291 [patent_app_country] => US [patent_app_date] => 2011-03-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3799 [patent_no_of_claims] => 13 [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/A1/0229/20110229333.pdf [firstpage_image] =>[orig_patent_app_number] => 13049291 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/049291
SHEAR WEB CONNECTION Mar 15, 2011 Abandoned
Array ( [id] => 8367609 [patent_doc_number] => 20120216993 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-08-30 [patent_title] => 'HEAT DISSIPATION DEVICE' [patent_app_type] => utility [patent_app_number] => 13/048886 [patent_app_country] => US [patent_app_date] => 2011-03-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 772 [patent_no_of_claims] => 10 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13048886 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/048886
HEAT DISSIPATION DEVICE Mar 15, 2011 Abandoned
Array ( [id] => 9660982 [patent_doc_number] => 08807949 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-08-19 [patent_title] => 'Radial fan wheel arrangement' [patent_app_type] => utility [patent_app_number] => 13/046833 [patent_app_country] => US [patent_app_date] => 2011-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 2316 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 355 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13046833 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/046833
Radial fan wheel arrangement Mar 13, 2011 Issued
Array ( [id] => 8495331 [patent_doc_number] => 20120294739 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-11-22 [patent_title] => 'IMPELLER, ELECTRIC AIR BLOWER USING SAME, AND ELECTRIC CLEANER USING ELECTRIC AIR BLOWER' [patent_app_type] => utility [patent_app_number] => 13/519003 [patent_app_country] => US [patent_app_date] => 2011-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 7147 [patent_no_of_claims] => 15 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13519003 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/519003
IMPELLER, ELECTRIC AIR BLOWER USING SAME, AND ELECTRIC CLEANER USING ELECTRIC AIR BLOWER Feb 15, 2011 Abandoned
Array ( [id] => 8513967 [patent_doc_number] => 20120313375 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-12-13 [patent_title] => 'ROTATIONAL FORCE GENERATING DEVICE AND A CENTRIPETALLY ACTING TYPE OF WATER TURBINE USING THE SAME' [patent_app_type] => utility [patent_app_number] => 13/580081 [patent_app_country] => US [patent_app_date] => 2011-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 4424 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13580081 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/580081
Rotational force generating device and a centripetally acting type of water turbine using the same Feb 15, 2011 Issued
Array ( [id] => 8605939 [patent_doc_number] => 20130011251 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-01-10 [patent_title] => 'TURBINE WITH RADIAL INLET AND OUTLET ROTOR FOR USE IN BIDIRECTIONAL FLOWS' [patent_app_type] => utility [patent_app_number] => 13/580099 [patent_app_country] => US [patent_app_date] => 2011-02-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3336 [patent_no_of_claims] => 6 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13580099 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/580099
Turbine with radial inlet and outlet rotor for use in bidirectional flows Feb 14, 2011 Issued
Array ( [id] => 8158134 [patent_doc_number] => 20120099994 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-04-26 [patent_title] => 'VERTICAL-AXIS WIND ROTOR' [patent_app_type] => utility [patent_app_number] => 13/379046 [patent_app_country] => US [patent_app_date] => 2011-02-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3056 [patent_no_of_claims] => 7 [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/A1/0099/20120099994.pdf [firstpage_image] =>[orig_patent_app_number] => 13379046 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/379046
VERTICAL-AXIS WIND ROTOR Feb 14, 2011 Abandoned
Array ( [id] => 8883359 [patent_doc_number] => 20130156543 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-06-20 [patent_title] => 'SINGLE SYSTEM WITH INTEGRATED COMPRESSOR AND PUMP AND METHOD' [patent_app_type] => utility [patent_app_number] => 13/579688 [patent_app_country] => US [patent_app_date] => 2011-02-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 5835 [patent_no_of_claims] => 10 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13579688 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/579688
Single system with integrated compressor and pump and method Feb 10, 2011 Issued
Array ( [id] => 10836783 [patent_doc_number] => 08864450 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-10-21 [patent_title] => 'Gas turbine engine synchronizing ring bumper' [patent_app_type] => utility [patent_app_number] => 13/018512 [patent_app_country] => US [patent_app_date] => 2011-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 1548 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13018512 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/018512
Gas turbine engine synchronizing ring bumper Jan 31, 2011 Issued
Array ( [id] => 9625236 [patent_doc_number] => 08794910 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-08-05 [patent_title] => 'Gas turbine engine synchronizing ring bumper' [patent_app_type] => utility [patent_app_number] => 13/018503 [patent_app_country] => US [patent_app_date] => 2011-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 1662 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13018503 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/018503
Gas turbine engine synchronizing ring bumper Jan 31, 2011 Issued
Array ( [id] => 8683731 [patent_doc_number] => 20130052015 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-02-28 [patent_title] => 'ARRANGEMENT AND A METHOD IN CONNECTION WITH A FLOATING WIND TURBINE' [patent_app_type] => utility [patent_app_number] => 13/576378 [patent_app_country] => US [patent_app_date] => 2011-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 3148 [patent_no_of_claims] => 18 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13576378 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/576378
ARRANGEMENT AND A METHOD IN CONNECTION WITH A FLOATING WIND TURBINE Jan 31, 2011 Abandoned
Array ( [id] => 8522041 [patent_doc_number] => 20120321449 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-12-20 [patent_title] => 'TURBINE' [patent_app_type] => utility [patent_app_number] => 13/580078 [patent_app_country] => US [patent_app_date] => 2011-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 9119 [patent_no_of_claims] => 16 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13580078 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/580078
Turbine seal fin leakage flow rate control Jan 26, 2011 Issued
Array ( [id] => 5958336 [patent_doc_number] => 20110182723 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-07-28 [patent_title] => 'TURBOMACHINE AIRCRAFT PROPELLER' [patent_app_type] => utility [patent_app_number] => 13/013298 [patent_app_country] => US [patent_app_date] => 2011-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 5354 [patent_no_of_claims] => 9 [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/A1/0182/20110182723.pdf [firstpage_image] =>[orig_patent_app_number] => 13013298 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/013298
TURBOMACHINE AIRCRAFT PROPELLER Jan 24, 2011 Abandoned
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