Search

Christopher R. Dandridge

Examiner (ID: 9584, Phone: (571)270-1505 , Office: P/3752 )

Most Active Art Unit
3752
Art Unit(s)
3752
Total Applications
642
Issued Applications
374
Pending Applications
104
Abandoned Applications
208

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20392012 [patent_doc_number] => 20250367487 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-04 [patent_title] => FIRE SUPPRESSION SYSTEM [patent_app_type] => utility [patent_app_number] => 19/301683 [patent_app_country] => US [patent_app_date] => 2025-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4372 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 19301683 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/301683
FIRE SUPPRESSION SYSTEM Aug 14, 2025 Pending
Array ( [id] => 20392010 [patent_doc_number] => 20250367485 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-04 [patent_title] => FIRE SUPPRESSION SYSTEM [patent_app_type] => utility [patent_app_number] => 19/297708 [patent_app_country] => US [patent_app_date] => 2025-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3276 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19297708 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/297708
FIRE SUPPRESSION SYSTEM Aug 11, 2025 Pending
Array ( [id] => 20392010 [patent_doc_number] => 20250367485 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-04 [patent_title] => FIRE SUPPRESSION SYSTEM [patent_app_type] => utility [patent_app_number] => 19/297708 [patent_app_country] => US [patent_app_date] => 2025-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3276 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19297708 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/297708
FIRE SUPPRESSION SYSTEM Aug 11, 2025 Pending
Array ( [id] => 19939282 [patent_doc_number] => 12311397 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-05-27 [patent_title] => Ultrasonic control apparatus and method for liquid jet [patent_app_type] => utility [patent_app_number] => 19/005083 [patent_app_country] => US [patent_app_date] => 2024-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 0 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 294 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19005083 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/005083
Ultrasonic control apparatus and method for liquid jet Dec 29, 2024 Issued
Array ( [id] => 19511049 [patent_doc_number] => 20240342735 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-17 [patent_title] => APPARATUS FOR NANOPARTICLE GENERATION [patent_app_type] => utility [patent_app_number] => 18/633878 [patent_app_country] => US [patent_app_date] => 2024-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5739 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18633878 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/633878
APPARATUS FOR NANOPARTICLE GENERATION Apr 11, 2024 Abandoned
Array ( [id] => 19343900 [patent_doc_number] => 20240252863 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-01 [patent_title] => FLEXIBLE DRY SPRINKLER HAVING A DIFFERENTIAL PRESSURE CONTROLLER [patent_app_type] => utility [patent_app_number] => 18/633704 [patent_app_country] => US [patent_app_date] => 2024-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2654 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -42 [patent_words_short_claim] => 332 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18633704 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/633704
Flexible dry sprinkler having a differential pressure controller Apr 11, 2024 Issued
Array ( [id] => 19511049 [patent_doc_number] => 20240342735 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-17 [patent_title] => APPARATUS FOR NANOPARTICLE GENERATION [patent_app_type] => utility [patent_app_number] => 18/633878 [patent_app_country] => US [patent_app_date] => 2024-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5739 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18633878 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/633878
APPARATUS FOR NANOPARTICLE GENERATION Apr 11, 2024 Abandoned
Array ( [id] => 19343900 [patent_doc_number] => 20240252863 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-01 [patent_title] => FLEXIBLE DRY SPRINKLER HAVING A DIFFERENTIAL PRESSURE CONTROLLER [patent_app_type] => utility [patent_app_number] => 18/633704 [patent_app_country] => US [patent_app_date] => 2024-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2654 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -42 [patent_words_short_claim] => 332 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18633704 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/633704
Flexible dry sprinkler having a differential pressure controller Apr 11, 2024 Issued
Array ( [id] => 20301579 [patent_doc_number] => 12447552 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-21 [patent_title] => Adaptive guide bushing for laser tube cutting system [patent_app_type] => utility [patent_app_number] => 18/632835 [patent_app_country] => US [patent_app_date] => 2024-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 39 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18632835 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/632835
Adaptive guide bushing for laser tube cutting system Apr 10, 2024 Issued
Array ( [id] => 19298054 [patent_doc_number] => 20240226620 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-11 [patent_title] => INTEGRATED AIR DISTRIBUTION SYSTEM AND FIRE SUPPRESSION SYSTEM [patent_app_type] => utility [patent_app_number] => 18/615869 [patent_app_country] => US [patent_app_date] => 2024-03-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11201 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 47 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18615869 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/615869
INTEGRATED AIR DISTRIBUTION SYSTEM AND FIRE SUPPRESSION SYSTEM Mar 24, 2024 Pending
Array ( [id] => 19298054 [patent_doc_number] => 20240226620 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-11 [patent_title] => INTEGRATED AIR DISTRIBUTION SYSTEM AND FIRE SUPPRESSION SYSTEM [patent_app_type] => utility [patent_app_number] => 18/615869 [patent_app_country] => US [patent_app_date] => 2024-03-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11201 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 47 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18615869 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/615869
INTEGRATED AIR DISTRIBUTION SYSTEM AND FIRE SUPPRESSION SYSTEM Mar 24, 2024 Pending
Array ( [id] => 19478039 [patent_doc_number] => 20240326081 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-03 [patent_title] => Pixelated Water Display and Design Tools Therefor [patent_app_type] => utility [patent_app_number] => 18/587905 [patent_app_country] => US [patent_app_date] => 2024-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10045 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 49 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18587905 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/587905
Pixelated water display and design tools therefor Feb 25, 2024 Issued
Array ( [id] => 19232652 [patent_doc_number] => 20240189844 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-13 [patent_title] => ELECTROSTATIC ATOMIZER [patent_app_type] => utility [patent_app_number] => 18/585777 [patent_app_country] => US [patent_app_date] => 2024-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8351 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18585777 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/585777
ELECTROSTATIC ATOMIZER Feb 22, 2024 Pending
Array ( [id] => 19232652 [patent_doc_number] => 20240189844 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-13 [patent_title] => ELECTROSTATIC ATOMIZER [patent_app_type] => utility [patent_app_number] => 18/585777 [patent_app_country] => US [patent_app_date] => 2024-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8351 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18585777 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/585777
ELECTROSTATIC ATOMIZER Feb 22, 2024 Pending
Array ( [id] => 19402642 [patent_doc_number] => 20240286153 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-29 [patent_title] => SPRAY DEVICE AND COATING METHOD [patent_app_type] => utility [patent_app_number] => 18/582842 [patent_app_country] => US [patent_app_date] => 2024-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3409 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 193 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18582842 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/582842
SPRAY DEVICE AND COATING METHOD Feb 20, 2024 Pending
Array ( [id] => 20177817 [patent_doc_number] => 20250261775 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-21 [patent_title] => Sports Hydration Method [patent_app_type] => utility [patent_app_number] => 18/443596 [patent_app_country] => US [patent_app_date] => 2024-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18443596 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/443596
Sports Hydration Method Feb 15, 2024 Pending
Array ( [id] => 20078171 [patent_doc_number] => 12352228 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-08 [patent_title] => Fuel injector [patent_app_type] => utility [patent_app_number] => 18/436607 [patent_app_country] => US [patent_app_date] => 2024-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 36 [patent_no_of_words] => 15804 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 340 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18436607 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/436607
Fuel injector Feb 7, 2024 Issued
Array ( [id] => 20078171 [patent_doc_number] => 12352228 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-08 [patent_title] => Fuel injector [patent_app_type] => utility [patent_app_number] => 18/436607 [patent_app_country] => US [patent_app_date] => 2024-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 36 [patent_no_of_words] => 15804 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 340 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18436607 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/436607
Fuel injector Feb 7, 2024 Issued
Array ( [id] => 19446496 [patent_doc_number] => 20240306626 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-19 [patent_title] => Tri-Directional Break-Away Boom Assembly [patent_app_type] => utility [patent_app_number] => 18/422289 [patent_app_country] => US [patent_app_date] => 2024-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5591 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 305 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18422289 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/422289
Tri-directional break-away boom assembly Jan 24, 2024 Issued
Array ( [id] => 19657446 [patent_doc_number] => 20240424511 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-26 [patent_title] => EFFICIENT GENERATION AND PERFORMANCE EVALUATION DEVICE OF FOAM UNDER HIGH TEMPERATURE AND HIGH PRESSURE [patent_app_type] => utility [patent_app_number] => 18/419605 [patent_app_country] => US [patent_app_date] => 2024-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5505 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 290 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18419605 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/419605
Efficient generation and performance evaluation device of foam under high temperature and high pressure Jan 22, 2024 Issued
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