`Assignee Statement Under 37 C.F.R. § 1.324(b}(2}
`Page | of 2
`
`IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
`
`Inventor(s}: David C. Parks et al.
`
`Examiner:
`
`NEA
`
`Patent No:
`
`10,472,938
`
`issued:
`
`November 12, 2019
`
`Art Unit:
`
`Confirmation
`No.:
`
`3641
`
`9246
`
`Title: PERFORATION GUN COMPONENTS—Atty Docket DMCoo7usCon3
`
`
`
`
`AND SYSTEM
`Ne.:
`
`Commissioner for Patents
`P.O. Box 1480
`Alexandria, VA 22313-1450
`
`ASSIGNER STATEMENT UNDER 37 C.F.R. § 1.324(b}(2)
`
`Sin
`
`This Statement is being submitted with a Petition to Correct Inventorship Under 37 C.F.R.
`§ 1.324 to add Christian Entschberger as an inventor for U.S. Patent No. 16,472,938.
`
`The sole assignee of U.S. Patent No. 10,472,938 is DynaEnergetics Europe GmbH
`(hereinafter, “the Assignee”).
`[, lan Grieves, in my capacity as President of the Assignee, hereby
`state that the Assignee agrees with the proposed change of inventorship. The following page
`further sets forth the documentary evidence establishing the right of the Assignee to take action in
`this matter in accordance with 37 C.F.R. § 3.73¢¢).
`
`
`
`_
`
`Signature:
`wet Bee
`3 :
`lan Grieves
`President, Dya8Energetics Etirope GmbH
`
`_
`
`
`
`Patent No. 10,472,938
`Assignee Statement Under 37 C.P.R. § 1.324(b}2}
`Pape 2 of 2
`
`STATEMENT UNDER 37 CPR. § 3.73fe}
`DynaEnergetics Eurone GmbH, a corporation, states that, for US. Patent No. 16,472,923 5,
`it is the assignee of the entire right, Ude, and interest. This interest is evidenced by a chain of
`utte from the inventors to DynaEnergetics Europe GmbH as follows:
`
`1. From Frank H. Preiss, Liarn McNelis, and Thifo Scharf to DynaEnergetics GmbH &
`Co. RG. The document was recorded in the USPTO at reei/frame 048654/04 16.
`
`2. From David C. Parks to JOP Engineering and Machine inc. The document was
`
`recorded in the LUISPTO at reel/frame 048654/0450.
`
`3. Prom Eric Mulhern to DynaEnergetics Canada inc. The document was recorded in the
`
`USPTO at reel/frame 048654/0434.
`
`4. From Dyna Energetics Canada Inc. to DynaEnergetios GmbH & Co. KG. The
`document was recorded in the USPTO at reei/frame D48654/G428,
`
`5. Prom DynaEnergetics GmbH & Co. KG to DynaEnergetics Europe GmbH. The
`document was recorded in the USPTO at reel/frame 05169 1/0453.
`
`6. From JDP Engineering and Machine Inc. to DynaEnergetics Europe GmbH. The
`document was recorded in the USPTOat reel/frame G52499/G41 1.
`
`As required by 37 CFR 3.73) Dt), the documentary evidence of the chain oftitle from
`the original owner to the assignee was submitted for recordation pursuant to 37 CFR 3.11.
`
`bod
`
`
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