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Exhibit 4.22
 FORM OF WARRANT
 NEITHER THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES
INTO WHICH THESE SECURITIES ARE EXERCISABLE HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933,
AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD,
TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE
SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR (B) AN OPINION OF COUNSEL, IN A FORM
REASONABLY ACCEPTABLE TO THE COMPANY, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR (II)
UNLESS SOLD PURSUANT TO RULE 144 UNDER SAID ACT. NOTWITHSTANDING THE FOREGOING, THE SECURITIES MAY
BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT
SECURED BY THE SECURITIES.
 JMAR TECHNOLOGIES, INC.
 WARRANT
 Issuance Date
 JMAR TECHNOLOGIES, INC. Company LAURUS MASTER FUND, LTD. Holder Warrant Shares Warrants Subscription Date" Securities Purchase Agreement
 EXERCISE OF WARRANT.
 Mechanics of Exercise Exhibit A Exercise Notice




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Aggregate Exercise Price Exercise Delivery Documents Transfer Agent Share Delivery Date DTC
 Exercise Price Exercise Price
 Companys Failure to Timely Deliver Securities
 -2-




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Buy-In" Buy-In Price"
 Cashless Exercise Unavailable Warrant Shares Cashless Exercise
 (A x B)  (A x C)
    -3-




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Disputes
 Limitations on Exercises
 Beneficial Ownership
 Principal Market Regulation
 -4-




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Exchange Cap
 ADJUSTMENT OF EXERCISE PRICE AND NUMBER OF WARRANT SHARES.
 Adjustment upon Subdivision or Combination of Common Stock
 RIGHTS UPON DISTRIBUTION OF ASSETS.
 Distribution
  -5-




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Other Common Stock
 PURCHASE RIGHTS; FUNDAMENTAL TRANSACTIONS.
 Purchase Rights Purchase Rights
 Fundamental Transactions
 -6-




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Corporate Event
 NONCIRCUMVENTION.
  HOLDER NOT DEEMED A STOCKHOLDER.
 -7-




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REISSUANCE OF WARRANTS.
 Transfer of Warrant
 Lost, Stolen or Mutilated Warrant
 Warrant Exchangeable for Multiple Warrants
 Issuance of New Warrants
 -8-




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NOTICES.
  AMENDMENT AND WAIVER.
  GOVERNING LAW.
  CONSTRUCTION; HEADINGS.
  DISPUTE RESOLUTION.
 -9-




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REMEDIES, OTHER OBLIGATIONS, BREACHES AND INJUNCTIVE RELIEF.
  TRANSFER.
  CERTAIN DEFINITIONS.
  Bloomberg
 Business Day
 -10-




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Closing Bid Price Closing Sale Price
 Common Stock
 Convertible Securities
 Eligible Market
 Expiration Date
 Fundamental Transaction
 -11-




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Options
 Parent Entity
 Person
 Principal Market
 Registration Rights Agreement
 Successor Entity
 [Signature Page Follows]
 -12-




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IN WITNESS WHEREOF,
 JMAR TECHNOLOGIES, INC.By:
    
    /s/ Dennis E. ValentineName: Dennis E. ValentineTitle: Chief Financial Officer




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EXHIBIT A
 EXERCISE
NOTICE

TO BE EXECUTED BY THE REGISTERED HOLDER TO EXERCISE THIS
WARRANT
 JMAR TECHNOLOGIES, INC.
  Warrant Company
 
 
  Cash Exercise
 Cashless Exercise
 
 
  Issue to:Account Number:(if electronic book entry transfer)DTC Participant Number:(if electronic book entry transfer)
  Name of Registered HolderBy:Name:Title:




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FORM OF ASSIGNMENT
  
 Dated:  ,(Signature must conform in all respects to name of
holder as specified on the face of the Warrant)Address of TransfereeIn the presence of: