Search

Christopher R. Dandridge

Examiner (ID: 595, Phone: (571)270-1505 , Office: P/3752 )

Most Active Art Unit
3752
Art Unit(s)
3752
Total Applications
656
Issued Applications
380
Pending Applications
105
Abandoned Applications
209

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20392011 [patent_doc_number] => 20250367486 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-04 [patent_title] => FIRE SUPPRESSION SYSTEM [patent_app_type] => utility [patent_app_number] => 19/300851 [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] => 4410 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19300851 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/300851
FIRE SUPPRESSION SYSTEM Aug 14, 2025 Pending
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] => 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] => 20406679 [patent_doc_number] => 20250375788 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-11 [patent_title] => Sprinkler Head Anti-sink Bracket [patent_app_type] => utility [patent_app_number] => 18/735152 [patent_app_country] => US [patent_app_date] => 2024-06-05 [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] => 0 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18735152 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/735152
Sprinkler Head Anti-sink Bracket Jun 4, 2024 Pending
Array ( [id] => 19613502 [patent_doc_number] => 20240399182 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-05 [patent_title] => SUSPENSION AND CONTROL HEAD APPARATUS FOR AERIAL FIREFIGHTING BUCKETS [patent_app_type] => utility [patent_app_number] => 18/676095 [patent_app_country] => US [patent_app_date] => 2024-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3044 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18676095 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/676095
SUSPENSION AND CONTROL HEAD APPARATUS FOR AERIAL FIREFIGHTING BUCKETS May 27, 2024 Pending
Array ( [id] => 19585426 [patent_doc_number] => 20240382983 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-21 [patent_title] => FULLY ADJUSTABLE ROTARY NOZZLE ASSEMBLY [patent_app_type] => utility [patent_app_number] => 18/666338 [patent_app_country] => US [patent_app_date] => 2024-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3189 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18666338 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/666338
FULLY ADJUSTABLE ROTARY NOZZLE ASSEMBLY May 15, 2024 Pending
Array ( [id] => 19388409 [patent_doc_number] => 20240278279 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-22 [patent_title] => QUICK DISASSEMBLY AND ASSEMBLY STRUCTURE OF SHOWER HEAD [patent_app_type] => utility [patent_app_number] => 18/650598 [patent_app_country] => US [patent_app_date] => 2024-04-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2953 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 224 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18650598 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/650598
QUICK DISASSEMBLY AND ASSEMBLY STRUCTURE OF SHOWER HEAD Apr 29, 2024 Pending
Array ( [id] => 19359577 [patent_doc_number] => 20240261611 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-08 [patent_title] => DEVICE FOR DELIVERING GASES CONTAINED THEREIN FOR EXTINGUISHING FIRE IN AN ENCLOSED SPACE [patent_app_type] => utility [patent_app_number] => 18/637851 [patent_app_country] => US [patent_app_date] => 2024-04-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6712 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18637851 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/637851
DEVICE FOR DELIVERING GASES CONTAINED THEREIN FOR EXTINGUISHING FIRE IN AN ENCLOSED SPACE Apr 16, 2024 Pending
Array ( [id] => 19555822 [patent_doc_number] => 20240367614 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-07 [patent_title] => FLUID SUPPLY SYSTEM [patent_app_type] => utility [patent_app_number] => 18/636865 [patent_app_country] => US [patent_app_date] => 2024-04-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3132 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18636865 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/636865
FLUID SUPPLY SYSTEM Apr 15, 2024 Pending
Array ( [id] => 20293271 [patent_doc_number] => 20250318514 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-16 [patent_title] => SYSTEM AND METHOD FOR AN AGRICULTURAL APPLICATOR [patent_app_type] => utility [patent_app_number] => 18/634186 [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] => 8977 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18634186 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/634186
SYSTEM AND METHOD FOR AN AGRICULTURAL APPLICATOR Apr 11, 2024 Pending
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] => 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] => 20092476 [patent_doc_number] => 20250222412 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-10 [patent_title] => LIQUID OUTLET SYSTEM AND GAS-LIQUID MIXING DEVICE [patent_app_type] => utility [patent_app_number] => 18/614722 [patent_app_country] => US [patent_app_date] => 2024-03-24 [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] => -8 [patent_words_short_claim] => 253 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18614722 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/614722
LIQUID OUTLET SYSTEM AND GAS-LIQUID MIXING DEVICE Mar 23, 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] => 19641857 [patent_doc_number] => 20240416377 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-19 [patent_title] => SPRINKLER STRUCTURE [patent_app_type] => utility [patent_app_number] => 18/585007 [patent_app_country] => US [patent_app_date] => 2024-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3081 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 263 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18585007 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/585007
SPRINKLER STRUCTURE Feb 21, 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
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