Prosecution Insights
Last updated: April 19, 2026
Application No. 18/791,456

Content Addressable Memory Device Having Electrically Floating Body Transistor

Non-Final OA §DP
Filed
Aug 01, 2024
Examiner
TECHANE, MUNA A
Art Unit
2827
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Zeno Semiconductor Inc.
OA Round
1 (Non-Final)
93%
Grant Probability
Favorable
1-2
OA Rounds
1y 10m
To Grant
99%
With Interview

Examiner Intelligence

Grants 93% — above average
93%
Career Allow Rate
508 granted / 545 resolved
+25.2% vs TC avg
Moderate +7% lift
Without
With
+6.9%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 10m
Avg Prosecution
16 currently pending
Career history
561
Total Applications
across all art units

Statute-Specific Performance

§101
2.5%
-37.5% vs TC avg
§103
28.2%
-11.8% vs TC avg
§102
35.7%
-4.3% vs TC avg
§112
25.1%
-14.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 545 resolved cases

Office Action

§DP
DETAILED ACTION 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 . Drawings The drawings received on 08/01/2024 have been accepted by the examiner. Information Disclosure Statement Acknowledgment is made of applicant's Information Disclosure Statement (IDS) Form PTO-1449, filed 10/01/2024. The information disclosed therein was considered. Claims 1-21 are presented for examination. Allowable Subject Matter A timely filed Terminal Disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome the non-statutory double patenting rejection of claims 1-21 of the invention. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP §§ 706.02(l)(1) - 706.02(l)(3) for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/process/file/efs/guidance/eTD-info-I.jsp. Claims 1-21 of 18/791456 rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-7 & 16-22 of U.S. Patent NoUS11594280. Although the claims at issue are not identical, they are not patentably distinct from each other because, claims 1-21 of the current application are either anticipated, or would have been obvious over, by the claims 1-7 & 26-22 of U.S. Patent No US11594280, e.g., despite a slight difference in the current application ( having a plurality of third transistors are connected), Patent No US11594280, already teaches a third transistor and would be obvious to have a plurality of third transistors that are electrically connected in the circuit as a design choice. MPEP 2144.04. Below is the chart showing the similarities (in bold) and differences between Claims 1-21, of the present application and claims 1-7 & 16-22 of U.S. Patent No 11594280. . 18/791456 US11594280 Claim 1, An integrated circuit comprising: a content addressable memory array comprising a plurality of content addressable memory cells arranged in a plurality of rows and columns, wherein each said content addressable memory cell comprises: a first floating body transistor; a second floating body transistor; and a third transistor; wherein said first floating body transistor and said second floating body transistor are electrically connected in series through a common node; wherein said third transistor is electrically connected to said common node; wherein said first floating body transistor and said second floating body transistor store complementary data; wherein a plurality of said third transistors are electrically connected; and a control circuit configured to perform write operations to said content addressable memory array. Claim 1, An integrated circuit comprising: a content addressable memory array comprising a plurality of content addressable memory cells arranged in a plurality of rows and columns, wherein each said content addressable memory cell comprises: a first floating body transistor; a second floating body transistor; and a third transistor; wherein said first floating body transistor and said second floating body transistor are electrically connected in series through a common node; wherein said third transistor is electrically connected to said common node; wherein said first floating body transistor and said second floating body transistor store complementary data; and a control circuit configured to perform write operations to said content addressable memory array. Claim 2, wherein said first floating body transistor and said second floating body transistor comprise a buried well region Claim 2, wherein said first floating body transistor and said second floating body transistor comprise a buried well region. Claim 3, wherein said first floating body transistor and said second floating body transistor comprise a buried insulator region. Claim 3, wherein said first floating body transistor and said second floating body transistor comprise a buried insulator region. Claim 4, wherein said first floating body transistor comprises a first gate region and said second floating body transistor comprises a second gate region Claim 4, wherein said first floating body transistor comprises a first gate region and said second floating body transistor comprises a second gate region. Claim 5, wherein said first floating body transistor comprises a first conductivity type and said third transistor comprises said first conductivity type. . Claim 5, wherein said first floating body transistor comprises a first conductivity type and said third transistor comprises said first conductivity type. Claim 6, wherein said first floating body transistor comprises a first conductivity type and said third transistor comprises a second conductivity type different from said first conductivity type Claim 6, wherein said first floating body transistor comprises a first conductivity type and said third transistor comprises a second conductivity type different from said first conductivity type. Claim 7, wherein said third transistor comprises a third floating body transistor. Claim 7, wherein said third transistor comprises a third floating body transistor. Claim 8, An integrated circuit comprising: a content addressable memory array comprising a plurality of content addressable memory cells arranged in a plurality of rows and columns, wherein each said content addressable memory cell comprises: a first floating body transistor; and a second floating body transistor; wherein said first floating body transistor and said second floating body transistor are electrically connected in series through a common node; wherein said first floating body transistor and said second floating body transistor store complementary data; and a third transistor; wherein a plurality of said third transistors are electrically connected; and a control circuit configured to perform write operations to said content addressable memory array. Claim 1, An integrated circuit comprising: a content addressable memory array comprising a plurality of content addressable memory cells arranged in a plurality of rows and columns, wherein each said content addressable memory cell comprises: a first floating body transistor; a second floating body transistor; and a third transistor; wherein said first floating body transistor and said second floating body transistor are electrically connected in series through a common node; wherein said third transistor is electrically connected to said common node; wherein said first floating body transistor and said second floating body transistor store complementary data; and a control circuit configured to perform write operations to said content addressable memory array. Claim 9, wherein said first floating body transistor and said second floating body transistor comprise a buried well region Claim 2, wherein said first floating body transistor and said second floating body transistor comprise a buried well region. Claim 10, wherein said first floating body transistor and said second floating body transistor comprise a buried insulator region. Claim 3, wherein said first floating body transistor and said second floating body transistor comprise a buried insulator region. Claim 11, wherein said first floating body transistor comprises a first gate region and said second floating body transistor comprises a second gate region Claim 4, wherein said first floating body transistor comprises a first gate region and said second floating body transistor comprises a second gate region. Claim 12, wherein said first floating body comprises a first conductivity type and said third transistor comprises said first conductivity type. Claim 5, wherein said first floating body transistor comprises a first conductivity type and said third transistor comprises said first conductivity type. Claim 13, wherein said first floating body transistor comprises a first conductivity type and said third transistor comprises a second conductivity type different from said first conductivity type. Claim 6, wherein said first floating body transistor comprises a first conductivity type and said third transistor comprises a second conductivity type different from said first conductivity type. Claim 14, wherein said third transistor comprises a third floating body transistor. Claim 7, wherein said third transistor comprises a third floating body transistor. Claim 15, An integrated circuit comprising: a content addressable memory array comprising a plurality of content addressable memory cells arranged in a plurality of rows and columns, wherein each said content addressable memory cell comprises: a first transistor having a first floating body; a second transistor having a second floating body; a third transistor; a first drain region contacting said first floating body; a second drain region contacting said second floating body; a first source region contacting said first floating body, spaced apart from said first drain region; and a second source region contacting said second floating body, spaced apart from said second drain region; wherein said first and second drain regions are electrically connected to each other; wherein said third transistor is electrically connected to said first and second drain regions; wherein said first floating body and said second floating body store complementary charge states; wherein a plurality of said third transistors are electrically connected; and a control circuit configured to perform write operations to said content addressable memory array. Claim 16, An integrated circuit comprising: a content addressable memory array comprising a plurality of content addressable memory cells arranged in a plurality of rows and columns, wherein each said content addressable memory cell comprises: a first transistor having a first floating body; a second transistor having a second floating body; a third transistor; a first drain region contacting said first floating body; a second drain region contacting said second floating body; a first source region contacting said first floating body, spaced apart from said first drain region; and a second source region contacting said second floating body, spaced apart from said second drain region; wherein said first and second drain regions are electrically connected to each other; wherein said third transistor is electrically connected to said first and second drain regions; and wherein said first floating body and said second floating body store complementary charge states; and a control circuit configured to perform write operations to said content addressable memory array. Claim 16, wherein said first transistor and said second transistor comprise a buried well region. Claim 17, wherein said first transistor and said second transistor comprise a buried well region. Claim 17, wherein said first transistor and said second transistor comprise a buried insulator region. Claim 18, wherein said first transistor and said second transistor comprise a buried insulator region. Claim 18, wherein said first transistor comprises a first gate region and said second transistor comprises a second gate region. Claim 19, wherein said first transistor comprises a first gate region and said second transistor comprises a second gate region. Claim 19, wherein said first transistor comprises a first conductivity type and said third transistor comprises said first conductivity type. Claim 20, wherein said first transistor comprises a first conductivity type and said third transistor comprises said first conductivity type. Claim 20, wherein said first transistor comprises a first conductivity type and said third transistor comprises a second conductivity type different from said first conductivity type. Claim 21, wherein said first transistor comprises a first conductivity type and said third transistor comprises a second conductivity type different from said first conductivity type. Claim 21, wherein said third transistor comprises a third floating body. Claim 22, Further comprising a fourth transistor, having a third floating body. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure Widjaja et al (US20100246277 Fig 24), Widjaja et al (US20120120752 Fig 4), Okhonin et al (US2011007578 fig 2). Any inquiry concerning this communication or earlier communications from the examiner should be directed to MUNA A TECHANE whose telephone number is (571)272-7856. The examiner can normally be reached on 571-272-7856. 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, Amir Zarabian can be reached on 571-272-1852. 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. /MUNA A TECHANE/Examiner, Art Unit 2827
Read full office action

Prosecution Timeline

Aug 01, 2024
Application Filed
Feb 07, 2026
Non-Final Rejection — §DP (current)

Precedent Cases

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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
93%
Grant Probability
99%
With Interview (+6.9%)
1y 10m
Median Time to Grant
Low
PTA Risk
Based on 545 resolved cases by this examiner. Grant probability derived from career allow rate.

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