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Robert Carl Rajewski

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  • Donalda, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Balanced hydrovac
    • Patent number 11,746,518
    • Issue date Sep 5, 2023
    • Robert Carl Rajewski
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Gas powered heat delivery system
    • Patent number 7,066,729
    • Issue date Jun 27, 2006
    • Robert C. Rajewski
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Flare stack operating on Coanda principle
    • Patent number 6,960,075
    • Issue date Nov 1, 2005
    • Robert C. Rajewski
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Utility pole installation system
    • Patent number 6,857,837
    • Issue date Feb 22, 2005
    • Robert C. Rajewski
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Injector
    • Patent number 6,776,188
    • Issue date Aug 17, 2004
    • Robert C. Rajewski
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
  • Information Patent Grant

    Vehicle mounted gas well pumping unit
    • Patent number 6,626,646
    • Issue date Sep 30, 2003
    • Robert C. Rajewski
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Mud tank cleaning system
    • Patent number 6,607,666
    • Issue date Aug 19, 2003
    • Robert C. Rajewski
    • B08 - CLEANING
  • Information Patent Grant

    Mud tank cleaning system
    • Patent number 6,547,964
    • Issue date Apr 15, 2003
    • Robert C. Rajewski
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Hydrovac excavating blast wand
    • Patent number 6,273,512
    • Issue date Aug 14, 2001
    • Robert C. Rajewski
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Gas blanket controller
    • Patent number 6,082,390
    • Issue date Jul 4, 2000
    • Robert C. Rajewski
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Flare stack
    • Patent number 5,975,885
    • Issue date Nov 2, 1999
    • Tornado Flare Systems, Inc.
    • Robert Carl Rajewski
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Nozzle and pilot for the burning of gas
    • Patent number 5,954,493
    • Issue date Sep 21, 1999
    • Robert Carl Rajewski
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Paper shredding assembly
    • Patent number 5,871,162
    • Issue date Feb 16, 1999
    • Rajewski; Robert C.
    • Robert C. Rajewski
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Steam over air flare tip
    • Patent number 5,865,613
    • Issue date Feb 2, 1999
    • Robert Carl Rajewski
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Flare igniter assembly
    • Patent number 4,854,855
    • Issue date Aug 8, 1989
    • Robert C. Rajewski
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES

Patents Applicationslast 30 patents

  • Information Patent Application

    LANCE SLEEVE
    • Publication number 20250207469
    • Publication date Jun 26, 2025
    • Dig Pig Products Inc.
    • Robert C. Rajewski
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Slidable Hydrovac Tank
    • Publication number 20220042276
    • Publication date Feb 10, 2022
    • Robert Carl Rajewski
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Balanced Hydrovac
    • Publication number 20210025155
    • Publication date Jan 28, 2021
    • Robert Carl Rajewski
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Dead Weight Thief Hatch
    • Publication number 20200049268
    • Publication date Feb 13, 2020
    • Robert Carl Rajewski
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Chemical Injector
    • Publication number 20150361969
    • Publication date Dec 17, 2015
    • Robert Carl Rajewski
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Hydrovac with Blower in Tank
    • Publication number 20110036635
    • Publication date Feb 17, 2011
    • Robert C. Rajewski
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    EXCAVATION APPARATUS AND METHOD
    • Publication number 20090064544
    • Publication date Mar 12, 2009
    • Robert C. Rajewski
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    TANK VENT PALLET
    • Publication number 20080223458
    • Publication date Sep 18, 2008
    • Robert C. Rajewski
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Flare stack
    • Publication number 20070281266
    • Publication date Dec 6, 2007
    • Robert C. Rajewski
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Application

    Dual receptable lift mobile paper shredder
    • Publication number 20060032956
    • Publication date Feb 16, 2006
    • Robert C. Rajewski
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Paper shredder and transfer truck
    • Publication number 20050167535
    • Publication date Aug 4, 2005
    • Bob Rajewski
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Application

    Paper shredder
    • Publication number 20050017106
    • Publication date Jan 27, 2005
    • Robert C. Rajewski
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Timing apparatus
    • Publication number 20050017833
    • Publication date Jan 27, 2005
    • Robert C. Rajewski
    • G04 - HOROLOGY
  • Information Patent Application

    FLARE STACK OPERATING ON COANDA PRINCIPLE
    • Publication number 20040110105
    • Publication date Jun 10, 2004
    • Robert C. Rajewski
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Application

    Vegetation removal process
    • Publication number 20040089327
    • Publication date May 13, 2004
    • Robert C. Rajewski
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Application

    Portable power generator
    • Publication number 20040021321
    • Publication date Feb 5, 2004
    • Robert C. Rajewski
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Utility pole installation system with articulated chassis
    • Publication number 20040001747
    • Publication date Jan 1, 2004
    • Robert C. Rajewski
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Application

    Method of disposal of security documents
    • Publication number 20030191658
    • Publication date Oct 9, 2003
    • Robert C. Rajewski
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Utility pole installation system
    • Publication number 20030133772
    • Publication date Jul 17, 2003
    • Robert C. Rajewski
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    In-line gas compression system
    • Publication number 20030077181
    • Publication date Apr 24, 2003
    • Robert C. Rajewski
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Mud tank cleaning system
    • Publication number 20030019811
    • Publication date Jan 30, 2003
    • Robert C. Rajewski
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL