Prosecution Insights
Last updated: April 19, 2026
Application No. 18/874,219

MAGNETIC ACTUATING DEVICE

Non-Final OA §102
Filed
Dec 12, 2024
Examiner
TEKA, ABIY
Art Unit
3745
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Nakanishi Jaeger GmbH
OA Round
1 (Non-Final)
85%
Grant Probability
Favorable
1-2
OA Rounds
2y 6m
To Grant
95%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allow Rate
569 granted / 672 resolved
+14.7% vs TC avg
Moderate +10% lift
Without
With
+10.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
17 currently pending
Career history
689
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
30.7%
-9.3% vs TC avg
§102
40.2%
+0.2% vs TC avg
§112
26.4%
-13.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 672 resolved cases

Office Action

§102
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale or otherwise available to the public before the effective filing date of the claimed invention. Claims 1-5, 7 and 9-17 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Duesmann et al. (DE 19841124 A1) hereinafter Duesmann. Regarding Claim 1 Duesmann teaches A magnetic actuating device (Fig 1) comprising a housing (O, S) , a piston rod (13) that is movable between two end positions along a longitudinal axis of the housing (O, S) and has at least one piston ( 6, 16, 4) that extends radially from the piston rod (13) and is made of a ferromagnetic material (magnetizable material since it is affected by magnetic poles 12) or at least partially encompasses such a material (Fig 1), with at least one magnetic system (9, 10) fixed to the housing (O, S), wherein the piston ( 6, 16, 4) and the magnetic system (9, 10) form at least one fluid gap system (7, 17) with axially variable fluid gaps (7, 17) , into which in each case at least one fluid supply (7.1) leads for the addition of actuating fluid, so that the piston rod (13) can be moved into its end positions at least by the addition of actuating fluid between the piston ( 6, 16, 4) and the magnet system (12) (Fig 2-3). Regarding Claim 2 Duesmann teaches wherein the piston rod (13) has two pistons (6, 16) which are arranged at a distance from one another, extend radially from the piston rod (5), and are made of a ferromagnetic material or at least comprise this material in some regions (Fig 2-3). Regarding Claim 3 Duesmann teaches wherein the magnet system (9, 10) is arranged between the pistons in a manner fixed to the housing (O, S) (Fig 1). Regarding Claim 4 Duesmann teaches wherein the actuating device comprises two magnet systems (9, 10) fixed to the housing (O, S), between which the piston ( 6, 16, 4) can be moved and which each define an end position of the piston ( 6, 16, 4) (Fig 1). Regarding Claim 5 Duesmann teaches wherein the magnet system (9, 10) is designed to be rotationally symmetrical (Fig 1). Regarding Claim 7 Duesmann teaches wherein the magnet system (9, 10) comprises a coil (since they are electromagnets), which is associated with the magnet system (9, 10) and can be connected to a power source (19) (Fig 1). Regarding Claim 9 Duesmann teaches wherein the magnet system (9, 10) has radially inner and/or radially outer pole pieces (12) made from a magnetic-flux-conducting material (Fig 1). Regarding Claim 10 Duesmann teaches wherein the magnet system (9, 10) is part of the housing (O, S) (Fig 1). Regarding Claim 11 Duesmann teaches wherein the piston rod (13) forms a receptacle for an actuator (11) passing through the piston rod (13) along the longitudinal axis (since armature 11 has thicknes it extends both longitudinally and axially within rod 13)(Fig 1). Regarding Claim 12 Duesmann teaches wherein a spring (9) (gas springs See Abstract) acts directly or indirectly on the piston rod (13) (Fig 1). Regarding Claim 13 Duesmann teaches, wherein at least one guide means (9) is provided for axially guiding at least one piston ( 6, 16, 4) along the longitudinal axis (Fig 1). Regarding Claim 14 Duesmann teaches wherein the housing (O, S) is of a multi-part design (Fig 1). Regarding Claim 15 Duesmann teaches wherein the piston rod (13) comprises a rotary feedthrough (7.2, 17.2) for the passage of one or more fluid channels (The valves 7.2, 17.2 are three way valves and has rotating fluid outlet positions See specification and Fig 1). Regarding Claim 16 Duesmann teaches, wherein the fluid supply (7.1) is also designed as a fluid outlet (Fig 1). Regarding Claim 17 Duesmann teaches wherein in addition to the fluid supply (16), there is in each case at least one fluid outlet (20) in the fluid gaps (15) (Fig 1). Claims 1 and 6 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Joerg et al. (DE 10003116 A1 hereinafter Joerg. Regarding Claim 1 Joerg teaches A magnetic actuating device (Fig 1) comprising a housing (2) , a piston rod (Fig 1) that is movable between two end positions along a longitudinal axis of the housing (2) and has at least one piston ( 13) that extends radially from the piston rod (Fig 1) and is made of a ferromagnetic material (Fig 1) or at least partially encompasses such a material (Fig 1), with at least one magnetic system (7, 8) fixed to the housing (2), wherein the piston ( 13) and the magnetic system (7, 8) form at least one fluid gap system (3,4) with axially variable fluid gaps (3, 4) , into which in each case at least one fluid supply (Fig 1) leads for the addition of actuating fluid, so that the piston rod (Fig 1) can be moved into its end positions at least by the addition of actuating fluid between the piston ( 13) and the magnet system (7, 8) (Fig 1). Regarding Claim 6 Joerg teaches wherein the magnet system (7, 8) has an annular arrangement of one or more permanent magnets polarized in the same direction radially (Fig 1). Claims 1 and 7-8 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Wolff et al. (DE102013102400) hereinafter Wolf. Regarding Claim 1 Wolf teaches A magnetic actuating device (Fig 1) comprising a housing (3), a piston rod (6) that is movable between two end positions along a longitudinal axis of the housing (2) and has at least one piston ( 7, 8) that extends radially from the piston rod (Fig 1) and is made of a ferromagnetic material (Fig 1) or at least partially encompasses such a material (Fig 1), with at least one magnetic system (12-14) fixed to the housing (3), wherein the piston (7, 8) and the magnetic system (12-14) form at least one fluid gap system (L1, L2) with axially variable fluid gaps (L1, L2) , into which in each case at least one fluid supply (Fig 1) leads for the addition of actuating fluid (Fig 1), so that the piston rod (6) can be moved into its end positions at least by the addition of actuating fluid between the piston ( 7, 8) and the magnet system (12-14) (Fig 1). Regarding Claim 7 Wolf teaches wherein the magnet system (12-14) comprises a coil (12), which is associated with the magnet system (12-14) and can be connected to a power source (Fig 1). Regarding Claim 8 Wolf teaches wherein the coil (12) is of ring-shaped design and is flanked on both sides by permanent magnets (13, 14) (Fig 1). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ABIY TEKA whose telephone number is (571)272-9804. The examiner can normally be reached on M-F 11-9 PM If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Nathaniel Nathaniel E. Wiehe can be reached on 571-272-8648. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /ABIY TEKA/ Primary Examiner, Art Unit 3745
Read full office action

Prosecution Timeline

Dec 12, 2024
Application Filed
Oct 17, 2025
Non-Final Rejection — §102 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
85%
Grant Probability
95%
With Interview (+10.3%)
2y 6m
Median Time to Grant
Low
PTA Risk
Based on 672 resolved cases by this examiner. Grant probability derived from career allow rate.

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