Search

Christopher A. Johnson

Examiner (ID: 11898, Phone: (571)272-9475 , Office: P/2899 )

Most Active Art Unit
2899
Art Unit(s)
2899, 2896
Total Applications
696
Issued Applications
536
Pending Applications
88
Abandoned Applications
91

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 12677293 [patent_doc_number] => 20180117597 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-05-03 [patent_title] => DEVICES AND METHODS FOR SEPARATING PARTICLES [patent_app_type] => utility [patent_app_number] => 15/846497 [patent_app_country] => US [patent_app_date] => 2017-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11258 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 58 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15846497 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/846497
DEVICES AND METHODS FOR SEPARATING PARTICLES Dec 18, 2017 Abandoned
Array ( [id] => 15896021 [patent_doc_number] => 20200147529 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-14 [patent_title] => BI-DIRECTIONAL NO FILTER NO RUN PIN [patent_app_type] => utility [patent_app_number] => 16/473476 [patent_app_country] => US [patent_app_date] => 2017-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5734 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 101 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16473476 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/473476
Bi-directional no filter no run pin Dec 18, 2017 Issued
Array ( [id] => 12524757 [patent_doc_number] => 10005089 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-06-26 [patent_title] => Separator device [patent_app_type] => utility [patent_app_number] => 15/837531 [patent_app_country] => US [patent_app_date] => 2017-12-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 14 [patent_no_of_words] => 7239 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 213 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15837531 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/837531
Separator device Dec 10, 2017 Issued
Array ( [id] => 12544071 [patent_doc_number] => 10010891 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-07-03 [patent_title] => Magnetic filter [patent_app_type] => utility [patent_app_number] => 15/831367 [patent_app_country] => US [patent_app_date] => 2017-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 12 [patent_no_of_words] => 4159 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 234 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15831367 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/831367
Magnetic filter Dec 3, 2017 Issued
Array ( [id] => 12725371 [patent_doc_number] => 20180133624 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-05-17 [patent_title] => Embedded Influent Diffuser for Floating Media Filter [patent_app_type] => utility [patent_app_number] => 15/829433 [patent_app_country] => US [patent_app_date] => 2017-12-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7652 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 213 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15829433 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/829433
Embedded influent diffuser for floating media filter Nov 30, 2017 Issued
Array ( [id] => 15382337 [patent_doc_number] => 10532331 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-01-14 [patent_title] => Artificial-whirlpool generator [patent_app_type] => utility [patent_app_number] => 15/825431 [patent_app_country] => US [patent_app_date] => 2017-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 18 [patent_no_of_words] => 6284 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 249 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15825431 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/825431
Artificial-whirlpool generator Nov 28, 2017 Issued
Array ( [id] => 13342487 [patent_doc_number] => 20180222783 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-09 [patent_title] => GRAVITY-FED WATER FILTER AND PURIFIER [patent_app_type] => utility [patent_app_number] => 15/815874 [patent_app_country] => US [patent_app_date] => 2017-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9164 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15815874 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/815874
Gravity-fed water filter and purifier Nov 16, 2017 Issued
Array ( [id] => 12859030 [patent_doc_number] => 20180178184 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-28 [patent_title] => METHOD AND APPARATUS FOR CONDITIONING FLUIDS [patent_app_type] => utility [patent_app_number] => 15/797829 [patent_app_country] => US [patent_app_date] => 2017-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 68280 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 234 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15797829 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/797829
METHOD AND APPARATUS FOR CONDITIONING FLUIDS Oct 29, 2017 Abandoned
Array ( [id] => 14810145 [patent_doc_number] => 20190271682 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-09-05 [patent_title] => COMBINED CENTRIFUGAL DEVICE [patent_app_type] => utility [patent_app_number] => 16/344723 [patent_app_country] => US [patent_app_date] => 2017-10-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3838 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16344723 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/344723
COMBINED CENTRIFUGAL DEVICE Oct 19, 2017 Abandoned
Array ( [id] => 12217625 [patent_doc_number] => 20180055984 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-03-01 [patent_title] => 'ENCLOSURE FOR A PORTABLE HEMODIALYSIS SYSTEM' [patent_app_type] => utility [patent_app_number] => 15/789916 [patent_app_country] => US [patent_app_date] => 2017-10-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 29 [patent_figures_cnt] => 29 [patent_no_of_words] => 21245 [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] => 15789916 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/789916
Enclosure for a portable hemodialysis system Oct 19, 2017 Issued
Array ( [id] => 16260050 [patent_doc_number] => 10751459 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-08-25 [patent_title] => Blood purification apparatus [patent_app_type] => utility [patent_app_number] => 15/788040 [patent_app_country] => US [patent_app_date] => 2017-10-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 11624 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 275 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15788040 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/788040
Blood purification apparatus Oct 18, 2017 Issued
Array ( [id] => 17081888 [patent_doc_number] => 20210276894 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-09 [patent_title] => Filter for Treating a Fluid in a Pipe, in Particular a Pipe of a Water Network, and Operating Method Thereof [patent_app_type] => utility [patent_app_number] => 16/338896 [patent_app_country] => US [patent_app_date] => 2017-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5485 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16338896 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/338896
Filter for Treating a Fluid in a Pipe, in Particular a Pipe of a Water Network, and Operating Method Thereof Oct 16, 2017 Abandoned
Array ( [id] => 12177796 [patent_doc_number] => 20180036732 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-02-08 [patent_title] => 'METHOD AND DEVICE FOR HIGH-THROUGHPUT SOLUTION EXCHANGE FOR CELL AND PARTICLE SUSPENSIONS' [patent_app_type] => utility [patent_app_number] => 15/785191 [patent_app_country] => US [patent_app_date] => 2017-10-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6206 [patent_no_of_claims] => 17 [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] => 15785191 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/785191
Method and device for high-throughput solution exchange for cell and particle suspensions Oct 15, 2017 Issued
Array ( [id] => 13521739 [patent_doc_number] => 20180312412 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-11-01 [patent_title] => CONTAINERIZED DESALINATION SYSTEM [patent_app_type] => utility [patent_app_number] => 15/772808 [patent_app_country] => US [patent_app_date] => 2017-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9579 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 15772808 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/772808
Containerized desalination system Sep 14, 2017 Issued
Array ( [id] => 15976215 [patent_doc_number] => 10668410 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-06-02 [patent_title] => Fuel filter comprising a fuel filter insert with a prefilter element and a main filter element [patent_app_type] => utility [patent_app_number] => 15/703146 [patent_app_country] => US [patent_app_date] => 2017-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 5894 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 270 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15703146 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/703146
Fuel filter comprising a fuel filter insert with a prefilter element and a main filter element Sep 12, 2017 Issued
Array ( [id] => 16289151 [patent_doc_number] => 10765977 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-09-08 [patent_title] => Fuel filter insert, and fuel filter comprising a prefilter element and a main filter element and comprising a water separating unit [patent_app_type] => utility [patent_app_number] => 15/702998 [patent_app_country] => US [patent_app_date] => 2017-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 6128 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15702998 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/702998
Fuel filter insert, and fuel filter comprising a prefilter element and a main filter element and comprising a water separating unit Sep 12, 2017 Issued
Array ( [id] => 12125332 [patent_doc_number] => 20180008918 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-01-11 [patent_title] => 'Fuel Filter Insert with a Prefilter and a Main Filter Element, and Fuel Filter' [patent_app_type] => utility [patent_app_number] => 15/703064 [patent_app_country] => US [patent_app_date] => 2017-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5974 [patent_no_of_claims] => 21 [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] => 15703064 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/703064
Fuel filter insert with a prefilter and a main filter element, and fuel filter Sep 12, 2017 Issued
Array ( [id] => 12238800 [patent_doc_number] => 20180071662 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-03-15 [patent_title] => 'SYSTEMS AND METHODS FOR PROCESSING EARTHEN SLURRIES' [patent_app_type] => utility [patent_app_number] => 15/702540 [patent_app_country] => US [patent_app_date] => 2017-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 23 [patent_no_of_words] => 6337 [patent_no_of_claims] => 33 [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] =>[firstpage_image] =>[orig_patent_app_number] => 15702540 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/702540
Systems and methods for processing earthen slurries Sep 11, 2017 Issued
Array ( [id] => 16321158 [patent_doc_number] => 10781114 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-09-22 [patent_title] => Electromagnetic pulsed-wave system for oil manipulation [patent_app_type] => utility [patent_app_number] => 15/700720 [patent_app_country] => US [patent_app_date] => 2017-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 20 [patent_no_of_words] => 5427 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15700720 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/700720
Electromagnetic pulsed-wave system for oil manipulation Sep 10, 2017 Issued
Array ( [id] => 12091610 [patent_doc_number] => 20170348703 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-12-07 [patent_title] => 'PARTICLE SEPARATION SYSTEM' [patent_app_type] => utility [patent_app_number] => 15/686882 [patent_app_country] => US [patent_app_date] => 2017-08-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2102 [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] =>[firstpage_image] =>[orig_patent_app_number] => 15686882 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/686882
Particle separation system Aug 24, 2017 Issued
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