Prosecution Insights
Last updated: April 19, 2026
Application No. 18/651,414

CPU Heat Sink Detection

Non-Final OA §102§103
Filed
Apr 30, 2024
Examiner
BUTTAR, MANDEEP S
Art Unit
2835
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
DELL PRODUCTS, L.P.
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
2y 1m
To Grant
96%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allow Rate
430 granted / 539 resolved
+11.8% vs TC avg
Strong +17% interview lift
Without
With
+16.6%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
14 currently pending
Career history
553
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
52.5%
+12.5% vs TC avg
§102
28.5%
-11.5% vs TC avg
§112
12.9%
-27.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 539 resolved cases

Office Action

§102 §103
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 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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 1-19 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Berke (U.S2016/0081231 A1). In regards to Claim 1, Berke discloses a circuit board (Fig.3, #22) comprising: a computer-based component (Fig.3, #14); a heat sink (Fig.3, #20) having a specification (Fig.3, #20 has a specification (i.e., height, material, thickness, etc.), the heat sink associated with the computer-based component (Fig.3), the heat sink comprising a unique key (Fig.3, #46/48) representative of the heat sink specification (Fig.3 and paragraph [0024]); and a key reading device (Fig.3 and paragraph [0024], which discloses a key reading device can be integrated with the circuit board and/or optical reader) configured to interact with the unique key and detect the heat sink specification (Paragraph [0024]). In regards to Claim 2, Berke discloses the circuit board of Claim 1, wherein the unique key is one of a mechanical key (Fig.3, contact pins of #20) and an electronic key (Fig.3, #46/48 are interpreted as the electronic key). In regards to Claim 3, Berke discloses the circuit board of Claim 2, wherein the unique key is an electronic key comprising a scannable code (Fig.3, #48, which can be scanned by an optical code reader) and the key reading device is an optical scanner (Paragraph [0024], optical reader). In regards to Claim 4, Berke discloses the circuit board of Claim 2, wherein the unique key is an electronic key comprising a resistance value where the resistance value is indicative of the heat sink specification (Paragraph [0024], discloses when the heat sink is placed on board #22 the contact pins will pull up resistors on the contact pad of #22, therefore setting a resistance valve which is indicative of #20). In regards to Claim 5, Berke discloses the circuit board of Claim 2, wherein unique key is a mechanical key comprising one or more fingers, wherein the number and position of the one or more fingers represents the heat sink specification (Fig.3 and paragraph [0024], discloses contact pins (one or more fingers) which are numbered and positioned to represent the heat sink #20 specification). In regards to Claim 6, Berke discloses the circuit board of Claim 5, wherein the key reading device comprises an array of contact pads (Fig.3, #22 includes an array of contact openings) and wherein combinations of contact pads correspond to the heat sink specification (Fig.3 and paragraph [0024], when the one or more fingers contact the contact pads, a set of resistors are pulled by the system, which can analyze the correct heat sink #20 was used). In regards to Claim 7, Berke discloses a method for ensuring a heat sink of proper specification is associated with a computer-based component associated with a circuit board (Fig.3, #20 associated with #14 on #22), the method comprising the steps of: associating a unique key (Fig.2, #46/48) with a heat sink (Fig.3, #20), the heat sink having a specification (Fig.3, #20 has a specification (i.e., height, material, thickness, etc.), the unique key being representative of the heat sink specification (Paragraph [0024]); associating a key reading device with a circuit board, the key reading device configured to interact with the unique key and detect the heat sink specification (Fig.3 and paragraph [0024], which discloses a key reading device can be integrated with the circuit board and/or optical reader). In regards to Claim 8, Berke discloses the method of Claim 7, wherein the key reading device is configured to transmit a signal indicative of the heat sink specification (Paragraph [0024], which relays information based on the unique key to BMC #38). In regards to Claim 9, Berke discloses the method of Claim 8, further comprising the step of transmitting the signal to a board management controller (Fig.3 and paragraph [0024], #38 received signal via #22). In regards to Claim 10, Berke discloses the method of Claim 7, wherein the unique key is one of a mechanical key and an electronic key (Fig,3m #46/48 as electronic key and contact pins (as mechanical key)). In regards to Claim 11, Berke discloses the method of Claim 10, wherein the unique key is an electronic key comprising a scannable code and the key reading device is an optical scanner (Paragraph [0024], Fig.3, #48 can be ready by a optical reader). In regards to Claim 12, Berke discloses the method of Claim 10, wherein the unique key is an electronic key comprising a resistance value where the resistance value is indicative of the heat sink specification (Paragraph [0024], discloses when the heat sink is placed on board #22 the contact pins will pull up resistors on the contact pad of #22 therefore setting a resistance valve which is indicative of #20). In regards to Claim 13, Berke discloses the method of Claim 10, wherein unique key is a mechanical key comprising one or more fingers, wherein the number and position of the one or more fingers represents the heat sink specification. In regards to Claim 14, Berke discloses the method of Claim 13, wherein the key reading device comprises an array of contact pads and wherein combinations of contact pads correspond to the heat sink specification (Fig.3, #22 includes an array of contact pads configured to correspond with the contact pins (one or more fingers) of #20 to indicate the heat sink specification, see paragraph [0024]). In regards to Claim 15, Berke discloses the method of Claim 14, wherein the key reading device is configured to transmit a signal indicative of the heat sink specification (Paragraph [0024], discloses a key reading device reading RFID #46 and communicate (send signal) to BMC #38). In regards to Claim 16, Berke discloses the method of Claim 15, further comprising the step of transmitting the signal to a board management controller (Paragraph [0024], discloses a key reading device reading RFID #46 and communicate (send signal) to BMC #38). In regards to Claim 17, Berke discloses an apparatus, comprising: a heat sink (Fig.3, #20) having one or more finger features extending downward toward a circuit board (Fig.3 and paragraph [0024], which discloses the heat sink #20 includes contact pins (one or more fingers)), wherein a number and configuration of the one or more finger features provides information about the heat sink (Paragraph [0024]); and one or more pads mounted on a surface of the circuit board, the pads positioned to contact the one or more finger features (Fig.2, #22 include contact pads for the one or more contact pins to determine the type of heat sink used, see paragraph [0024]). In regards to Claim 18, Berke discloses the apparatus of claim 17, wherein the one or more finger features are electrically conductive and complete a circuit when in contact with the one or more pads (Fig.3, paragraph [0024], which discloses when the one or more fingers (contact pins) are inserted into the openings of #22, said fingers causes the resisters to be pulled high, thus completing a circuit). In regards to Claim 19, Berke discloses the apparatus of claim 18, each of the one or more pads have a unique resistor value and are connected to a voltage (Paragraph [0024], which disclose each contact pad includes a resistor which are connected to a voltage and are pulled high when in contact with the one or more fingers). Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim 20 is rejected under 35 U.S.C. 103 as being unpatentable over Berke (U.S 2016/0081231 A1) in view of Sun (U.S 2023/0062807 A1). In regards to Claim 20, Berke discloses the apparatus of claim 17, Wherein the one or more finger features comprise a pin element configured to contact the one or more pads (Fig.3, #20 includes pins to connect to the one or more pads on motherboard #22, see paragraph [0024]). Berke fails to disclose: Wherein the one or more finger features comprise a spring-loaded moveable pin element However, Sun discloses: Wherein the one or more finger features comprise a spring-loaded moveable pin element (Fig.3, #23 are spring loaded moveable pins contacting multiple pads on a circuit board #1, as such the office notes that with the combination of Berke in view of Sun, the one or more electrical contact pins (as taught by Berke) would be replaced with spring loaded moveable pins (as taught by Sun) to electrical connect to the one or more pads on the circuit board). Therefore, it would of have been obvious to one of ordinary skill in the art at the time the application was filed to have modified the one or more electrical contact pins (as taught by Berke) to be replaced with spring loaded moveable pins (as taught by Sun) to electrical connect to the one or more pads on the circuit board. By utilizing spring loaded pins, would ease insertion and reduce labor cost and error rate (Sun, Paragraph [0023]). Additionally, MPEP 2143.02 (I) notes that all the claimed elements were known in the prior art and one of ordinary skill in the art at the time of the invention could have combined and/or modified the elements as claimed by known methods with no change in their respective functions, and the combination and/or modification would have yielded predictable results to one of ordinary skill in the art at the time of the invention. As such, by modifying one type of electrical connection (pin) with a spring loaded pin would be within the purview of one of ordinary skill in the art at the time of the invention was filed as Berke discloses a plurality of conductive pins connected to a contact pads of the mother. By including movable pins, would allow for easier placement and provide reliable performance due to the spring applying constant pressure to ensure electrical conductivity (See MPEP 2143.02, citing, KSR Int'l Co. v. Teleflex Inc., 550 U.S. 398, 82 USPQ2d 1385 (2007)). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Cameron (U.S Patent 6,685,094) – Discloses using electronic unique codes on elements to disclose information regarding said elements. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MANDEEP S BUTTAR whose telephone number is (571)272-4768. The examiner can normally be reached 7:00AM-4:00PM. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Jayprakash Gandhi can be reached at 5712723740. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /MANDEEP S BUTTAR/ Primary Examiner, Art Unit 2835
Read full office action

Prosecution Timeline

Apr 30, 2024
Application Filed
Feb 20, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12604433
SYSTEMS AND METHODS FOR ENVIRONMENTAL CONTROL OF VEHICLE SENSING SYSTEMS
2y 5m to grant Granted Apr 14, 2026
Patent 12604435
HEAT HARVESTING IN DATA STORAGE DEVICES
2y 5m to grant Granted Apr 14, 2026
Patent 12588173
ELECTRONIC APPARATUS
2y 5m to grant Granted Mar 24, 2026
Patent 12584639
Electric Control Box, Air Conditioning Outdoor Unit, Air Conditioner and Method for Assembling Electric Control Box
2y 5m to grant Granted Mar 24, 2026
Patent 12563707
Cooling Module With Integrated Pump for Immersion Cooling in Electronics
2y 5m to grant Granted Feb 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
80%
Grant Probability
96%
With Interview (+16.6%)
2y 1m
Median Time to Grant
Low
PTA Risk
Based on 539 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month