Prosecution Insights
Last updated: April 19, 2026
Application No. 16/737,226

AEROSOL DELIVERY DEVICE WITH IMPROVED FLUID TRANSPORT

Non-Final OA §102§103
Filed
Jan 08, 2020
Examiner
CAMPBELL, THOR S
Art Unit
3761
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Rai Strategic Holdings Inc.
OA Round
5 (Non-Final)
75%
Grant Probability
Favorable
5-6
OA Rounds
3y 1m
To Grant
76%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allow Rate
954 granted / 1276 resolved
+4.8% vs TC avg
Minimal +1% lift
Without
With
+0.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
57 currently pending
Career history
1333
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
44.9%
+4.9% vs TC avg
§102
35.0%
-5.0% vs TC avg
§112
12.8%
-27.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1276 resolved cases

Office Action

§102 §103
DETAILED ACTION 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 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)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1-3, 12-16 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Collett et al. (US 2015/0027459A1). Collett discloses in reference to claim: 1. An atomizer for an aerosol delivery device, the atomizer comprising: a single porous monolith 600 formed of a ceramic, the single porous monolith having a first area configured as a reservoir area to retain an aerosol precursor composition and a second area configured as a liquid transport area and defining a substantially flat exterior surface portion, that spans across an entirety or substantial entirety of one side of the single porous monolith, the liquid transport area being configured to transport the aerosol precursor composition from the reservoir area to the substantially flat exterior surface portion; and a vaporization element 50 positioned on the substantially exterior flat surface portion of the liquid transport area of the single porous monolith such that the vaporization element is arranged to be in direct contact with the aerosol precursor composition transported to the substantially flat exterior surface portion so as to be configured for vaporization of the aerosol precursor composition at the substantially flat exterior surface portion of the liquid transport area. Specifically Collet discloses: An aerosol delivery device 10 comprising: an outer housing 15; a reservoir 600 containing a liquid; a heater 50 configured to vaporize the liquid; and a liquid transport element 300 configured to provide the liquid to the heater; wherein one or both of the liquid transport element and the reservoir is formed of porous glass. The aerosol precursor composition (or one or more components thereof) can be stored in a reservoir present in or on the substrate 600. For example, the perimeter of the substrate can include one or more containers, porous materials, or the like useful for storing one or more components of the aerosol precursor composition therein, and one or more transport elements can be present to transport aerosol precursor composition from the reservoir to the microheaters. Examples of such embodiments are shown in FIG. 4 and FIG. 5. Referring first to FIG. 4, a substrate 600 is shown having a plurality of microheaters 50 attached thereto. The microheaters can be characterized as being attached to a surface of the substrate, embedded within the substrate, or recessed within the substrate (e.g., within a well or other depression formed within the substrate, as otherwise described below). The substrate can be formed of any material suitable for use in a smoking article and, preferably, can comprise an electrically insulating material. The substrate material can include, but is not limited to, polymeric materials, particularly heat resistant polymers, paper, cardboard, ceramics, and the like. In other embodiments, the reservoir can be a substrate adapted to retain the aerosol precursor composition--e.g., can be a layer of material that is at least partially saturated with the aerosol precursor composition. Such layer can be absorbent, adsorbent, or otherwise porous so as to provide the ability to retain the aerosol precursor composition. Other materials, however, such as glass or quartz can be used. [0014] A smoking article as disclosed herein further can comprise an aerosol precursor composition. In specific embodiments, the microheater can be operatively positioned within the smoking article to be substantially in contact with the aerosol precursor composition. Further, the aerosol precursor composition can be present in a variety of forms, such as being in the form of a liquid or gel at ambient conditions. If desired, the aerosol precursor composition alternatively can be in the form of a solid at ambient conditions. In specific embodiments, the aerosol precursor composition can be in the form of a gel that is coated on the microheater. [0012] A microheater for use in an article as disclosed herein can be utilized independent of further components. In other embodiments, the microheater can be attached to a substrate. Such substrate can be a permanent fixture of the article, or the substrate can be removable from the smoking article. Preferably, the substrate can be formed of an electrically insulating material. [0041] The electrically conductive material used in the microheater can comprise essentially any material that is both electrically conductive and suitable for thin film formation in the size ranges discussed above. For example, the electrically conductive material can be selected from the group consisting of elemental metals, metal alloys, silicon (including single crystal silicon and poly-silicon), ceramics, carbon, carbides, nitrides, and combinations thereof. In more specific embodiments, the electrically conductive material can be formed of platinum, gold, silver, copper, aluminum, tungsten, zinc, nickel, titanium, nichrome, silicon carbide, poly-silicon, single crystal silicon, titanium nitride, and the like. In particular embodiments, elemental metals, such as platinum, can be particularly beneficial due to exhibiting good oxidation resistance and long-term stability. A thin film microheater according to the present disclosure can exhibit a high level of ruggedness and stability that can be preferred over more fragile and less stable hot wires. Regarding the limitation of a flat exterior surface portion, it is noted that a specific meaning for exterior surface is not found in the disclosure, and as such the Examiner interprets the surface as previously argued to read on an exterior surface. Further note that a surface can be reasonably interpreted to be mean an exterior portion or outer boundary of an object. PNG media_image1.png 646 1142 media_image1.png Greyscale It is noted that the limitation that the substantially flat exterior surface portion “that spans across an entirety or substantial entirety of the second area”, not explicitly supported by the original disclosure. Applicant suggests that the support for the newly added limitations is supported by Applicant’s Fig. 2 and the corresponding description. Looking the original disclosure, Fig. 2 is described at [0114] Moreover, while the reservoir 244 and liquid transport element 236 are illustrated in FIG. 2 as being substantially planar, other shapes are also encompassed. However, Applicant’s discussion of Fig. 3 suggests that -- Preferentially, at least a portion of a surface of at least the liquid transport element is substantially flat to provide a location for placement of the heater. Such embodiments are exemplified in FIG. 3, wherein the reservoir 344 is substantially in the form of a half cylinder. The liquid transport element 336 is inset in the flat surface 344a of the reservoir; however, the liquid transport element may be layered on the flat surface of the reservoir. As seen in FIG. 3, the heater 334 is positioned on the liquid transport element 336, and etchings 356 are present in the liquid transport element. PNG media_image2.png 344 505 media_image2.png Greyscale Note that etchings 356 present a similar “stepped” flat surface as disclosed in Collett. Applicant’s figure 3 shows the substantially flat exterior surface portion B [spanning] across an entirety or substantial entirety of the second area of the liquid transport element A. From above it can be understood that the disclosure provides for “at least a portion of” the surface being “substantially flat”. The disclosure does not indicate the substantially flat exterior surface portion [spanning] across an entirety or substantial entirety of the second area. Fig. 2, relied on by Applicant, fails to show the surface of the liquid transport area that spans across an entirety or substantial entirety of the second area. Fig. 2 shows only the surface of the transport area spanning at least a portion of the monolith. Fig. 3 discloses a liquid transport element having a stepped surface including at least a portion of the surface being “substantially flat” in order to provide a location for the placement of the heater as is similarly done by Collett and shown above. As such the interpretation of Collett to read on the newly added limitation is maintained. 2. (Currently amended) The atomizer according to claim 1, wherein the single porous monolith has a substantially square or substantially rectangular cross-section. See Figs. 4 and 5 3. The atomizer according to claim 1, wherein the vaporization element 50 is a heater. 12. An aerosol delivery device comprising: an outer housing 102; a single porous monolith 600 formed of a ceramic, the single porous monolith having a first area configured as a reservoir area to retain an aerosol precursor composition thereof and a second area configured as a liquid transport area and defining a substantially flat exterior surface portion, that spans across an entirety or substantial entirety of one side of the single porous monolith, the liquid transport area being configured to transport the aerosol precursor composition from the reservoir area to the substantially flat exterior surface portion; a vaporization element 50 positioned on the substantially flat exterior surface portion of the liquid transport area of the single porous monolith monolith such that the vaporization element is arranged to be in direct contact with the aerosol precursor composition transported to the substantially flat exterior surface portion so as to be configured for vaporization of the aerosol precursor composition at the substantially flat surface portion of the liquid transport area to form a vapor. 13. The aerosol delivery device according to claim 12, further comprising an air entry 18 at end 12, a mouth end 11, and an aerosol port 18 formed in the mouth end. See Fig. 2 PNG media_image3.png 535 922 media_image3.png Greyscale 14. The aerosol delivery device according to claim 13, wherein an air flow passing between the air entry and the aerosol port is configured to pass substantially across the substantially exterior flat surface portion (top) surface of the single porous monolith. See Figs. 5 and 7 15. The aerosol delivery device according to claim 12, wherein the single porous monolith has a substantially square or substantially rectangular cross-section. See figure 5 16. The aerosol delivery device according to claim 12, wherein the vaporization element 50 is a heater. 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 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. The Supreme Court in KSR International Co. v. Teleflex Inc., 82 USPQ2d 1385, 1395-97 (2007) identified a number of rationales to support a conclusion of obviousness which are consistent with the proper “functional approach” to the determination of obviousness as laid down in Graham. The key to supporting any rejection under 35 U.S.C. 103 is the clear articulation of the reason(s) why the claimed invention would have been obvious. The Supreme Court in KSR noted that the analysis supporting a rejection under 35 U.S.C. 103 should be made explicit. EXEMPLARY RATIONALES Exemplary rationales that may support a conclusion of obviousness include: (A) Combining prior art elements according to known methods to yield predictable results; (B) Simple substitution of one known element for another to obtain predictable results; (C) Use of known technique to improve similar devices (methods, or products) in the same way; (D) Applying a known technique to a known device (method, or product) ready for improvement to yield predictable results; (E) “Obvious to try” – choosing from a finite number of identified, predictable solutions, with a reasonable expectation of success; (F) Known work in one field of endeavor may prompt variations of it for use in either the same field or a different one based on design incentives or other market forces if the variations are predictable to one of ordinary skill in the art; (G) Some teaching, suggestion, or motivation in the prior art that would have led one of ordinary skill to modify the prior art reference or to combine prior art reference teachings to arrive at the claimed invention. Claim(s) 6-11, 19 is/are rejected under 35 U.S.C. 103 as being unpatentable over Colllett et al. (US 2015/0027459A1) in view of Minskoff et al. (US 2016/0021930A1) and/or Radomski et al. (US 7992554). Collett discloses the claimed invention except in reference to claim: 6. The atomizer according to claim 1, wherein the vaporization element is printed on the substantially flat exterior surface portion of the liquid transport area of the single porous monolith. Collett discloses a printed heater 50 wherein the resistive element of the heater is printed on a support layer provided on the ceramic monolith. Minskoff teaches a similar device including a ceramic wick wherein the resistive heating element is directly written or printed on the ceramic monolith. At least under KSR rationales A, C, or D, one of skill would find it obvious to modify the Collett device to include a heating means directly printed onto the single porous monolith as direct printing is known to be effective and predictable by Minksoff. 7. The atomizer according to claim 1, wherein the vaporization element is annealed on the substantially flat exterior surface portion of the liquid transport area of the single porous monolith. Note the method of forming the heater (annealing) is not germane to the issue of patentability of the device. 8. The atomizer according to claim 1, wherein the vaporization element 50 is a flat ribbon heater. See Minskoff figures 23 and 104 showing the provision of a flat ribbon heater. At least under KSR rationales A, C, or D, one of skill would find it obvious to modify the Collett device to include a flat ribbon heating means directly printed onto the single porous monolith as flat ribbon heating element configurations are known to be effective and predictable by Minksoff. 9. The atomizer according to claim 1, further comprising a reservoir 76024 that is separate from the porous monolith. Absorptive ceramic reservoir 76024 may be fluidly coupled with the atomizer assembly 76050 for providing the liquid to the atomizer assembly 76050, in response to aspiration by the user.10. The atomizer according to claim 9, wherein the portion 1 of the porous monolith that is configured to retain the aerosol precursor composition is further configured to receive the aerosol precursor composition from the reservoir 3. 10. The atomizer according to claim 9, wherein the first area of the single porous monolith (wick) that is configured as a reservoir area to retain the aerosol precursor composition is further configured to receive the aerosol precursor composition from the reservoir that is separate from the single porous monolith. Regarding claims 9- 10, Radomski teaches the use of porous wick having a reservoir portion 1 and a liquid transport portion 2 and further includes an additional reservoir 3 in communication with the reservoir portion of the porous wick element. PNG media_image4.png 633 886 media_image4.png Greyscale At least under KSR rationales A, C, or D, one of skill would find it obvious to modify the Collett device to include, as taught by Radomski, an additional separate reservoir in communication with the reservoir portion of the single porous monolith to provide for a larger capacity for the liquid precursor. 11. The atomizer according to claim 9, wherein the porous monolith includes one or more etchings. Note etchings is defined in the specification to include generically grooves or channels. See Figure 5 of Collett showing a grooves/channels in transport element in which the heater 50 is placed. 19. (Currently amended) The aerosol delivery device according to claim 16, wherein the heater is printed on the substantially flat exterior surface portion of the liquid transport area of the single porous ceramic monolith or is annealed to the substantially flat exterior surface portion of the liquid transport area of the single porous ceramic monolith. Collett discloses a printed heater 50 wherein the resistive element of the heater is printed on a support layer provided on the ceramic monolith. Minskoff teaches a similar device including a ceramic wick wherein the resistive heating element is directly written or printed on the ceramic monolith. At least under KSR rationales A, C, or D, one of skill would find it obvious to modify the Collett device to include a heating means directly printed onto the single porous monolith as direct printing is known to be effective and predictable by Minksoff. Response to Arguments Applicant's arguments filed 12/17/2025 have been fully considered but they are not persuasive. Applicant argues the Collett fails to disclose the newly added limitations. Applicant’s new limitations are addressed above along with the argument that Collett fails to disclose such limitations. Any inquiry concerning this communication or earlier communications from the examiner should be directed to THOR S CAMPBELL whose telephone number is (571)272-4776. The examiner can normally be reached on M,W-F 6:30-10:30, 12-4. 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, Ibrahime Abraham can be reached on 5712705569. 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. /THOR S CAMPBELL/Primary Examiner, Art Unit 3761 tsc
Read full office action

Prosecution Timeline

Jan 08, 2020
Application Filed
Mar 26, 2022
Non-Final Rejection — §102, §103
Jun 29, 2022
Response Filed
Oct 06, 2022
Final Rejection — §102, §103
Jan 10, 2023
Response after Non-Final Action
Jan 10, 2023
Notice of Allowance
Jan 19, 2023
Response after Non-Final Action
Mar 10, 2023
Response after Non-Final Action
Mar 29, 2023
Response after Non-Final Action
Jun 28, 2023
Response after Non-Final Action
Sep 05, 2023
Response after Non-Final Action
Sep 06, 2023
Response after Non-Final Action
Sep 07, 2023
Response after Non-Final Action
Sep 07, 2023
Response after Non-Final Action
Feb 14, 2025
Response after Non-Final Action
Apr 16, 2025
Request for Continued Examination
Apr 17, 2025
Non-Final Rejection — §102, §103
Apr 17, 2025
Response after Non-Final Action
Jul 18, 2025
Response Filed
Oct 15, 2025
Final Rejection — §102, §103
Dec 17, 2025
Response after Non-Final Action
Jan 15, 2026
Request for Continued Examination
Feb 18, 2026
Response after Non-Final Action
Feb 20, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12604369
HEAT SOURCE DEVICE, SUBSTRATE SUPPORT DEVICE AND SUBSTRATE PROCESSING FACILITY
2y 5m to grant Granted Apr 14, 2026
Patent 12595934
Water Heater Controller
2y 5m to grant Granted Apr 07, 2026
Patent 12590732
HEATING SYSTEM AND METHODS
2y 5m to grant Granted Mar 31, 2026
Patent 12588467
OPTICAL SENSORS FOR MEASURING PROPERTIES OF CONSUMABLE PARTS IN A SEMICONDUCTOR PLASMA PROCESSING CHAMBER
2y 5m to grant Granted Mar 24, 2026
Patent 12568556
ELECTRODE HEATING UNIT AND DEVICE, AND CONTROL METHOD FOR PROTECTING ELECTRICAL SHORT THEREFOR
2y 5m to grant Granted Mar 03, 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

5-6
Expected OA Rounds
75%
Grant Probability
76%
With Interview (+0.8%)
3y 1m
Median Time to Grant
High
PTA Risk
Based on 1276 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