Search

Jay C Chang

Examiner (ID: 9244, Phone: (571)272-6132 , Office: P/2895 )

Most Active Art Unit
2895
Art Unit(s)
2817, 2895
Total Applications
599
Issued Applications
443
Pending Applications
60
Abandoned Applications
96

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 14747771 [patent_doc_number] => 20190257059 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-22 [patent_title] => WATER FOUNTAIN APPARATUS [patent_app_type] => utility [patent_app_number] => 16/279183 [patent_app_country] => US [patent_app_date] => 2019-02-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10808 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16279183 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/279183
WATER FOUNTAIN APPARATUS Feb 18, 2019 Pending
Array ( [id] => 17711716 [patent_doc_number] => 11375690 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-07-05 [patent_title] => Vortex fountain [patent_app_type] => utility [patent_app_number] => 16/271231 [patent_app_country] => US [patent_app_date] => 2019-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6547 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16271231 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/271231
Vortex fountain Feb 7, 2019 Issued
Array ( [id] => 17392611 [patent_doc_number] => 11241599 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-02-08 [patent_title] => Fire suppression system [patent_app_type] => utility [patent_app_number] => 16/268089 [patent_app_country] => US [patent_app_date] => 2019-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 12 [patent_no_of_words] => 8521 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 297 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16268089 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/268089
Fire suppression system Feb 4, 2019 Issued
Array ( [id] => 18870213 [patent_doc_number] => 11857993 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-01-02 [patent_title] => Vibration nozzle for bidet [patent_app_type] => utility [patent_app_number] => 17/045741 [patent_app_country] => US [patent_app_date] => 2019-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 2684 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 225 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17045741 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/045741
Vibration nozzle for bidet Jan 28, 2019 Issued
Array ( [id] => 14622671 [patent_doc_number] => 20190224703 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-07-25 [patent_title] => POWER SPRAYER [patent_app_type] => utility [patent_app_number] => 16/253702 [patent_app_country] => US [patent_app_date] => 2019-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2080 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16253702 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/253702
POWER SPRAYER Jan 21, 2019 Abandoned
Array ( [id] => 17904507 [patent_doc_number] => 11458341 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-10-04 [patent_title] => System and method for monitoring differential pressure across a dry pipe valve in a fire suppression system [patent_app_type] => utility [patent_app_number] => 16/254133 [patent_app_country] => US [patent_app_date] => 2019-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 20 [patent_no_of_words] => 29896 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 254 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16254133 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/254133
System and method for monitoring differential pressure across a dry pipe valve in a fire suppression system Jan 21, 2019 Issued
Array ( [id] => 16175604 [patent_doc_number] => 20200222572 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-07-16 [patent_title] => Wick-Based Volatile Substance Diffuser [patent_app_type] => utility [patent_app_number] => 16/246279 [patent_app_country] => US [patent_app_date] => 2019-01-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7285 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 59 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16246279 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/246279
Wick-based volatile substance diffuser Jan 10, 2019 Issued
Array ( [id] => 16539667 [patent_doc_number] => 20200406080 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-12-31 [patent_title] => Sprinkler Head [patent_app_type] => utility [patent_app_number] => 16/969756 [patent_app_country] => US [patent_app_date] => 2019-01-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4875 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16969756 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/969756
Sprinkler Head Jan 7, 2019 Abandoned
Array ( [id] => 14649935 [patent_doc_number] => 20190232096 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-01 [patent_title] => EARLY FIRE DETECTION WITH LASER-BASED SENSOR AND 2D INFORMATION MAPPING FOR HIGH CEILING BUILDINGS [patent_app_type] => utility [patent_app_number] => 16/229505 [patent_app_country] => US [patent_app_date] => 2018-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4335 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16229505 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/229505
EARLY FIRE DETECTION WITH LASER-BASED SENSOR AND 2D INFORMATION MAPPING FOR HIGH CEILING BUILDINGS Dec 20, 2018 Abandoned
Array ( [id] => 14650383 [patent_doc_number] => 20190232320 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-01 [patent_title] => REVERSIBLE NOZZLE IN ULTRASONIC ATOMIZER FOR CLOG PREVENTION [patent_app_type] => utility [patent_app_number] => 16/211320 [patent_app_country] => US [patent_app_date] => 2018-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4734 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16211320 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/211320
Reversible nozzle in ultrasonic atomizer for clog prevention Dec 5, 2018 Issued
Array ( [id] => 15176137 [patent_doc_number] => 20190358660 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-11-28 [patent_title] => PLUGGED SPRAY NOZZLE DETECTION USING ELECTROMAGNETIC RADIATION [patent_app_type] => utility [patent_app_number] => 16/210209 [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] => 5452 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16210209 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/210209
PLUGGED SPRAY NOZZLE DETECTION USING ELECTROMAGNETIC RADIATION Dec 4, 2018 Abandoned
Array ( [id] => 14339791 [patent_doc_number] => 20190151868 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-23 [patent_title] => SPRAY NOZZLE [patent_app_type] => utility [patent_app_number] => 16/197640 [patent_app_country] => US [patent_app_date] => 2018-11-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7264 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 163 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16197640 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/197640
Spray nozzle Nov 20, 2018 Issued
Array ( [id] => 19026608 [patent_doc_number] => 11925952 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-12 [patent_title] => Powder spray gun comprising a wear resistant electrode support [patent_app_type] => utility [patent_app_number] => 16/183626 [patent_app_country] => US [patent_app_date] => 2018-11-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 6849 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16183626 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/183626
Powder spray gun comprising a wear resistant electrode support Nov 6, 2018 Issued
Array ( [id] => 18683433 [patent_doc_number] => 11779140 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-10-10 [patent_title] => Aerating drinking straw [patent_app_type] => utility [patent_app_number] => 16/762025 [patent_app_country] => US [patent_app_date] => 2018-11-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 55 [patent_no_of_words] => 8935 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 278 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16762025 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/762025
Aerating drinking straw Nov 1, 2018 Issued
Array ( [id] => 13956333 [patent_doc_number] => 20190054510 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-02-21 [patent_title] => SANITARY ROTARY TANK CLEANING APPARATUS [patent_app_type] => utility [patent_app_number] => 16/167235 [patent_app_country] => US [patent_app_date] => 2018-10-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4769 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 247 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16167235 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/167235
Sanitary rotary tank cleaning apparatus Oct 21, 2018 Issued
Array ( [id] => 18853054 [patent_doc_number] => 11850611 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-12-26 [patent_title] => Two-piece nozzle for aerosol dispensers [patent_app_type] => utility [patent_app_number] => 16/761586 [patent_app_country] => US [patent_app_date] => 2018-10-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 32 [patent_no_of_words] => 5263 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 310 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16761586 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/761586
Two-piece nozzle for aerosol dispensers Oct 18, 2018 Issued
Array ( [id] => 17800583 [patent_doc_number] => 11414871 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-08-16 [patent_title] => Limiting ice and ice dam formation and related methods and devices [patent_app_type] => utility [patent_app_number] => 16/163072 [patent_app_country] => US [patent_app_date] => 2018-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 5255 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16163072 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/163072
Limiting ice and ice dam formation and related methods and devices Oct 16, 2018 Issued
Array ( [id] => 15798047 [patent_doc_number] => 20200122166 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-23 [patent_title] => MULTI-MODE FILTERED SHOWERHEAD CONVERTIBLE INTO DIFFERENT CONFIGURATIONS [patent_app_type] => utility [patent_app_number] => 16/163369 [patent_app_country] => US [patent_app_date] => 2018-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2521 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16163369 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/163369
MULTI-MODE FILTERED SHOWERHEAD CONVERTIBLE INTO DIFFERENT CONFIGURATIONS Oct 16, 2018 Abandoned
Array ( [id] => 15798093 [patent_doc_number] => 20200122189 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-23 [patent_title] => SYSTEM, METHOD, AND APPARATUS FOR HOT MELT ADHESIVE APPLICATION [patent_app_type] => utility [patent_app_number] => 16/162989 [patent_app_country] => US [patent_app_date] => 2018-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6554 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16162989 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/162989
System, method, and apparatus for hot melt adhesive application Oct 16, 2018 Issued
Array ( [id] => 15364535 [patent_doc_number] => 20200018032 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-16 [patent_title] => POWER UNIT WITH SALT SPREADER AND SALT SPREADER FOR USE THEREWITH [patent_app_type] => utility [patent_app_number] => 16/150784 [patent_app_country] => US [patent_app_date] => 2018-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 24801 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -25 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16150784 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/150784
Power unit with salt spreader and salt spreader for use therewith Oct 2, 2018 Issued
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