`Assignee Statement Under 37 C.F.R. § 1.324(b)(2)}
`Page L of 2
`
`IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
`
`inventor(s): Frank Haron Preisset al.
`
`Patent No:
`
`10,844,697
`
`Issued:
`
`November 24, 2020
`
`Examiner:
`
`Axt Unit:
`
`Confirmation
`
`N/A
`
`3641
`
`6155
`
`
`
`Title: PERFORATIONGUN COMPONENTS—Atty Docket DMCOO7USCon4 —
`
`AND SYSTEM
`No.:
`-
`:
`
`Commissioner forPatents
`P.O. Box 1430
`Alexandria, VA 22313-1456
`
`Sir:
`
`ASSIGNEE STATEMENT UNDER 37 C.E.R. § 1.324(b)@2)
`.
`.
`cee
`This Statement is being submitted with a2 Petition to Correct inventorship Under 37 C.FER.
`§ 1.324 to add Christian Eitschberger as an inventor for U.S. Patent No.10,844,697.
`The sole assignee of U.S. Patent No. 10,844,697 is DynaEnergetics Europe GmbH
`(hereinafter, “theAssignee”). L janGrieves, inorycapacity as Managing DirectoroftheAssignee,
`hereby state that the Assignee:agrees with the proposed,change of,inventorship. The following
`page further sets forth the documentary evidence establishing the right ofthe Assignee to take
`action in this matter in accordance with 37CE,R. § 3.73(0).
`
`/}
`Signature:
`/ dae
` pee:2Dee.Qo2e-—
`
`a
`é
`lan Grieves
`Managing Directot, Dy: Entrgetics Europe GmbH
`
`
`
`
`
`
`
`Patent No. 10,844,697
`Assignes Statement Under 37 C.P.R. § 1.324(b)(2)
`Page 2 of 2
`
`STATEMENT UNDER 37 C.BR. § 3.73{e)
`DynaEnergetics Europe GmbH, a corporation, states that, for U.S. Patent No. 10,844,697,
`it is the assignee ofthe entire right,title, and interest. This interest is evidenced by a chain of
`title from the inventors to DynaEnergetics Europe GmbH as follows:
`
`1. From Frank H. Preiss, Liam McNelis, and Thile Scharf to DynaEnergetics GmbH &
`
`Co. KG. The document was recorded in the USPTO at reel/frame 0505 19/0446,
`
`2. trom David C. Parks to JDP Engineering and Machine Inc. The document was
`recorded in the USPTO at reel/frame 0505 19/0050.
`
`3. FromEric Mulhern to DynaEnergetics Canada Inc. The document was recorded in the
`USPTOat reel/frame 0505 19/0150,
`
`' 4. From Dyna Energetics Canada Inc. io DynaBnergetics GmbH & Co. KG. The
`document was recorded in the USPTO at reel/frame 0505 19/0238.
`
`5. From Dynaknergeticos GmbH & Co. RG to DynaEnergetics Europe GmbH. The
`
`document was recorded in the USPTO at reel/frame 05 1966/0906.
`
`6. From JDP Engineering and Machine inc. to DynaEnergetics Europe GmbH. The
`document was recorded in the USPTO at reei/frame O5249G/09 11.
`
`As required by 37 CPR 3.73{cK1G), the documentary evidence of the cham oftitle from.
`the original owner to the assignes was submitted forrecordation pursuant to 37CFR § 3.11.
`
`
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