Search

Davis D Hwu

Examiner (ID: 10544, Phone: (571)272-4904 , Office: P/3744 )

Most Active Art Unit
3752
Art Unit(s)
3752, 3744, 3753, 3763
Total Applications
3096
Issued Applications
2372
Pending Applications
166
Abandoned Applications
557

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 16793593 [patent_doc_number] => 20210123410 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-04-29 [patent_title] => MOVABLE AND SEMI-SUBMERGED POWER GENERATOR USING WATERWHEEL TURBINE [patent_app_type] => utility [patent_app_number] => 17/256129 [patent_app_country] => US [patent_app_date] => 2019-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3882 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 406 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17256129 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/256129
MOVABLE AND SEMI-SUBMERGED POWER GENERATOR USING WATERWHEEL TURBINE Mar 10, 2019 Abandoned
Array ( [id] => 16231118 [patent_doc_number] => 10738660 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-08-11 [patent_title] => Generating steam turbine performance maps [patent_app_type] => utility [patent_app_number] => 16/290613 [patent_app_country] => US [patent_app_date] => 2019-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 7915 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 240 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16290613 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/290613
Generating steam turbine performance maps Feb 28, 2019 Issued
Array ( [id] => 16550254 [patent_doc_number] => 10883404 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-01-05 [patent_title] => Method and apparatus for controlling reductant injection into an exhaust gas feedstream of an internal combustion engine [patent_app_type] => utility [patent_app_number] => 16/274591 [patent_app_country] => US [patent_app_date] => 2019-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 4503 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16274591 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/274591
Method and apparatus for controlling reductant injection into an exhaust gas feedstream of an internal combustion engine Feb 12, 2019 Issued
Array ( [id] => 16238998 [patent_doc_number] => 20200256232 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-08-13 [patent_title] => Construction Machine [patent_app_type] => utility [patent_app_number] => 16/642468 [patent_app_country] => US [patent_app_date] => 2019-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7669 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 227 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16642468 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/642468
Construction machine Jan 30, 2019 Issued
Array ( [id] => 16223490 [patent_doc_number] => 20200248607 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-08-06 [patent_title] => AFTER TREATMENT SYSTEM AND AFTER TREATMENT METHOD FOR LEAN-BURN ENGINE [patent_app_type] => utility [patent_app_number] => 16/263558 [patent_app_country] => US [patent_app_date] => 2019-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9875 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16263558 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/263558
After treatment system and after treatment method for lean-burn engine Jan 30, 2019 Issued
Array ( [id] => 14654313 [patent_doc_number] => 20190234285 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-01 [patent_title] => METHOD TO DETERMINE THE QUANTITY OF METAL POWDERS ACCUMULATED IN A PARTICULATE FILTER FOR AN INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 16/263567 [patent_app_country] => US [patent_app_date] => 2019-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4862 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 361 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16263567 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/263567
Method to determine the quantity of metal powders accumulated in a particulate filter for an internal combustion engine Jan 30, 2019 Issued
Array ( [id] => 14373033 [patent_doc_number] => 20190160429 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-30 [patent_title] => GASEOUS EMISSIONS TREATMENT STRUCTURE AND METHOD FOR INDUCTION HEATING [patent_app_type] => utility [patent_app_number] => 16/256654 [patent_app_country] => US [patent_app_date] => 2019-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9186 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16256654 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/256654
Gaseous emissions treatment structure and method for induction heating Jan 23, 2019 Issued
Array ( [id] => 16261870 [patent_doc_number] => 10753296 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-08-25 [patent_title] => Work machine [patent_app_type] => utility [patent_app_number] => 16/256580 [patent_app_country] => US [patent_app_date] => 2019-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 4618 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 252 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16256580 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/256580
Work machine Jan 23, 2019 Issued
Array ( [id] => 14626033 [patent_doc_number] => 20190226384 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-07-25 [patent_title] => MUFFLER ASSEMBLY UNIT [patent_app_type] => utility [patent_app_number] => 16/249258 [patent_app_country] => US [patent_app_date] => 2019-01-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3782 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 52 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16249258 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/249258
Muffler assembly unit Jan 15, 2019 Issued
Array ( [id] => 18118035 [patent_doc_number] => 11549421 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-01-10 [patent_title] => Apparatus and method for heating a device for exhaust gas after-treatment [patent_app_type] => utility [patent_app_number] => 16/960982 [patent_app_country] => US [patent_app_date] => 2019-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2989 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16960982 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/960982
Apparatus and method for heating a device for exhaust gas after-treatment Jan 8, 2019 Issued
Array ( [id] => 14568241 [patent_doc_number] => 20190211727 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-07-11 [patent_title] => INJECTION CONTROLLER [patent_app_type] => utility [patent_app_number] => 16/239693 [patent_app_country] => US [patent_app_date] => 2019-01-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9735 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16239693 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/239693
Injection controller Jan 3, 2019 Issued
Array ( [id] => 14568243 [patent_doc_number] => 20190211728 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-07-11 [patent_title] => METHODS AND SYSTEMS FOR EXHAUST GAS RECIRCULATION [patent_app_type] => utility [patent_app_number] => 16/240622 [patent_app_country] => US [patent_app_date] => 2019-01-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13493 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16240622 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/240622
Methods and systems for exhaust gas recirculation Jan 3, 2019 Issued
Array ( [id] => 16863280 [patent_doc_number] => 11022016 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-06-01 [patent_title] => Exhaust gas treatment system and method with improved regeneration [patent_app_type] => utility [patent_app_number] => 16/239247 [patent_app_country] => US [patent_app_date] => 2019-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 5484 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 238 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16239247 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/239247
Exhaust gas treatment system and method with improved regeneration Jan 2, 2019 Issued
Array ( [id] => 16337002 [patent_doc_number] => 10787949 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-09-29 [patent_title] => Systems and method for an exhaust port arrangement of a split exhaust system [patent_app_type] => utility [patent_app_number] => 16/237475 [patent_app_country] => US [patent_app_date] => 2018-12-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 17011 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16237475 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/237475
Systems and method for an exhaust port arrangement of a split exhaust system Dec 30, 2018 Issued
Array ( [id] => 14502889 [patent_doc_number] => 20190195099 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-06-27 [patent_title] => EXHAUST DEVICE OF ENGINE [patent_app_type] => utility [patent_app_number] => 16/218009 [patent_app_country] => US [patent_app_date] => 2018-12-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7810 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16218009 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/218009
EXHAUST DEVICE OF ENGINE Dec 11, 2018 Abandoned
Array ( [id] => 14502895 [patent_doc_number] => 20190195102 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-06-27 [patent_title] => EXHAUST GAS PURIFICATION APPARATUS FOR AN INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 16/210009 [patent_app_country] => US [patent_app_date] => 2018-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13786 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [patent_words_short_claim] => 228 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16210009 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/210009
Exhaust gas purification apparatus for an internal combustion engine Dec 4, 2018 Issued
Array ( [id] => 16029429 [patent_doc_number] => 10677125 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-06-09 [patent_title] => Exhaust gas purification apparatus for internal combustion engine [patent_app_type] => utility [patent_app_number] => 16/210008 [patent_app_country] => US [patent_app_date] => 2018-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 8256 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 240 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16210008 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/210008
Exhaust gas purification apparatus for internal combustion engine Dec 4, 2018 Issued
Array ( [id] => 15346669 [patent_doc_number] => 20200011226 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-09 [patent_title] => METHOD FOR REGENERATING EXHAUST GAS FILTER FOR VEHICLE [patent_app_type] => utility [patent_app_number] => 16/208864 [patent_app_country] => US [patent_app_date] => 2018-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7498 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16208864 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/208864
Method for regenerating exhaust gas filter for vehicle Dec 3, 2018 Issued
Array ( [id] => 14502893 [patent_doc_number] => 20190195101 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-06-27 [patent_title] => EXHAUST GAS PURIFICATION APPARATUS FOR AN INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 16/207891 [patent_app_country] => US [patent_app_date] => 2018-12-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15359 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 334 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16207891 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/207891
Exhaust gas purification apparatus for an internal combustion engine Dec 2, 2018 Issued
Array ( [id] => 17400348 [patent_doc_number] => 20220042438 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-10 [patent_title] => AN AFTERTREATMENT SYSTEM [patent_app_type] => utility [patent_app_number] => 17/296454 [patent_app_country] => US [patent_app_date] => 2018-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4371 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17296454 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/296454
Aftertreatment system Nov 29, 2018 Issued
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