Prosecution Insights
Last updated: April 19, 2026
Application No. 19/020,602

GAS MEASURING DEVICE AND METHOD FOR DISPLAYING INFORMATION DETERMINED BY THE GAS MEASURING DEVICE

Non-Final OA §102§103
Filed
Jan 14, 2025
Examiner
AZIZ, ADNAN
Art Unit
2685
Tech Center
2600 — Communications
Assignee
DRÄGERWERK AG & CO. KGAA
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
2y 3m
To Grant
99%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allow Rate
420 granted / 547 resolved
+14.8% vs TC avg
Strong +35% interview lift
Without
With
+35.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
25 currently pending
Career history
572
Total Applications
across all art units

Statute-Specific Performance

§101
2.8%
-37.2% vs TC avg
§103
51.7%
+11.7% vs TC avg
§102
18.3%
-21.7% vs TC avg
§112
11.7%
-28.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 547 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 . DETAILED ACTION This office action is in response to application filed on January 14, 2025. Claims 1-14 are currently pending in the application. Drawings The drawings filed on January 14, 2025 are acknowledged and are acceptable. 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. (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. Claims 1-3, 5-10, and 12-14 are rejected under 35 U.S.C. 102(a)(1) and (a)(2) as being anticipated by Holdcroft et al. (U.S. Publication No. 2019/0086378; hereinafter “Holdcroft”). As per claim 1, Holdcroft discloses a gas measuring device (see e.g., Figs. 1, 2, 3A-3B, 10A-10D: gas detector devices 106/221/300/1000) comprising: a gas sensor (e.g., para. [0055]: “Referring to FIGS. 3A-3B, a gas detector 300 may comprise at least one gas sensor 310 configured to detect gas in the ambient environment.”); a first display unit (para. [0031]: gas detectors may comprise a display/LED’s for communicating sensed information to a user); wherein the first display unit is configured to display information relating to a hazardous situation (e.g., para. [0031] & [0055]: “The main LED indicators use 3 colors to show status: green to represent “safe to proceed”, red to represent “danger, evacuate” and orange to represent maintenance activity…Pulsing LED's provide extra visibility for alerts and warnings to both users and co-workers.”): a control unit (e.g., para. [0055]: “The gas detector may comprise an internal processor 360 configured to receive and process information from the sensor 310, control the display 302, and control communications to and from the gas detector 300.”); wherein the control unit is configured to determine the hazardous situation on the basis of a gas measurement value of the gas sensor (e.g., para. [0035], [0043] & [0055]: “The detector devices 106 may comprise gas detector devices operable to detect concentrations of one or more gases in the air. These detector devices 106 may be mobile and carried with a worker in the facility. In some embodiments, the gas detector devices 106 may be operable to trigger alarms when the detected gas concentration moves outside of a predetermined threshold or thresholds.”); wherein the control unit is configured to determine a status information about an internal device status (e.g., para. [0055] & [0084]: critical status information); and a second display unit (e.g., para. [0083]: a gas detector 1000 comprises a first display 1002 and a second display 1004): wherein the second display unit is configured to display the status information (see e.g., Figs. 10A-10D; para. [0083]-[0084]: “the top surface display 1004 may comprise one or more indicators 1006 (e.g. where the top surface display 1004 may be separate from the main display 1002). Critical status information may be communicated to the user via the indicators 1006. The indicators 1006 may provide basic information at a quick glance for the user, such as a confidence signal that the detector is functioning correctly, battery power is sufficient, and the atmosphere is safe, for example. This may allow a quick reference for the user, where the user may also consult the main (first) display 1002 located on the front surface of the gas detector 1000 if more information is desired.”); wherein the second display unit is a bistable display unit (see e.g., para. [0083]-[0084]: a gas detector 1000 comprises a first display 1002 and a second display 1004; and para. [0075]: the gas detector may use a color E-ink display for lower power usage). As per claim 2, claim 1 is incorporated and Holdcroft discloses: wherein the second display unit comprises electronic paper (e.g., para. [0075]). As per claim 3, claim 1 is incorporated and Holdcroft discloses: wherein the control unit is configured to detect a gas sensor configuration, a device identification, a device property, a software version, and compliance with standards, and to determine the status information based thereon (e.g., para. [0033], [0039], [0043], [0055] & [0084]: “Information pulled to the detector 106 would include firmware upgrades, detector deployment, settings, set point configuration, permission rights and maintenance reminders”; “Gas detectors 221 may communicate data to the mobile device 202, such as gas level readings, gas identification, exposure data, and any alarms or alert”; “). As per claim 5, claim 1 is incorporated and Holdcroft discloses: wherein the control unit is configured to determine the status information during a device switch-on process and a device switch-off process (e.g., para. [0089]). As per claim 6, claim 1 is incorporated and Holdcroft discloses: wherein the control unit is configured to detect a device configuration change and to determine the status information in the event of a change in the device configuration (e.g., para. [0033], [0039] & [0084]). As per claim 7, claim 1 is incorporated and Holdcroft discloses: wherein the second display unit is configured to display different information alternately at an interval (e.g., para. [0033], [0071] & [0085]). Method claims 8-10 and 12-14 are drawn to the method of using the corresponding apparatus claimed in claims 1-3 and 5-7. Therefore, method claims 8-10 and 12-14 correspond to apparatus claims 1-3 and 5-7 and are rejected for the same reasons of anticipation as used above. Claim Rejections - 35 USC § 103 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 of this title, 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. Claims 4 and 11 are rejected under 35 U.S.C. 103 as being unpatentable over Holdcroft in view of Delgrande et al. (U.S. Publication No. 2021/0295959; hereinafter “Delgrande”). As per claim 4, claim 1 is incorporated and Holdcroft teaches communicating critical status information to the user via indicators/second display (para. [0033] & [0084]), but does not explicitly disclose: wherein the control unit is configured to compare the status information with a previously determined status information and, if a difference is determined between the status information and the previously determined status information, the second display unit displays the current status information. However, in the same field of endeavor, Delgrande teaches: wherein the control unit is configured to compare the status information with a previously determined status information and, if a difference is determined between the status information and the previously determined status information, the second display unit displays the current status information (e.g., para. [0043]-[0044]: “the POCT system can be designed such that content displayed on the auxiliary display of an POCT instrument of the plurality of POCT instruments can be based on data stored in the system control unit and, if this stored data is adjusted in the system control unit, the adjusted data can be automatically transmitted to the POCT instrument and content based on the adjusted data can be displayed on the auxiliary display.”). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have modified Holdcroft to incorporate the teachings of Delgrande to provide displaying the current status information based on comparing the status information with a previously determined status information. Doing so allows the most current status information to be automatically updated and presented on the second/auxiliary display unit, as recognized by Delgrande (para. [0044]). Method claim 11 is drawn to the method of using the corresponding apparatus claimed in claim 4. Therefore, method claim 11 corresponds to apparatus claim 4 and is rejected for the same reasons of obviousness as used above. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Refer to PTO-892, Notice of References Cited for a listing of analogous art. Darveau (U.S. Publication No. 2015/0212057) discloses a wearable air quality monitor system. Delgado (U.S. Publication No. 2019/0073890) discloses systems and methods for controlling the display of a gas detector. Longley (U.S. Publication No. 2020/0258368) discloses systems and methods for monitoring gas levels and triggering alarms when high gas levels are detected. Voumard (U.S. Publication No. 2018/0231515) discloses a gas measurement device incorporated into a watch. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ADNAN AZIZ whose telephone number is (571) 270-7536, (Fax: 571-270-8536). The examiner can normally be reached Monday - Friday (9am - 6pm Eastern Time). 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, QUAN-ZHEN WANG can be reached at 571-272-3114. 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. /ADNAN AZIZ/Primary Examiner, Art Unit 2685 adnan.aziz@uspto.gov
Read full office action

Prosecution Timeline

Jan 14, 2025
Application Filed
Mar 07, 2026
Non-Final Rejection — §102, §103 (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
77%
Grant Probability
99%
With Interview (+35.1%)
2y 3m
Median Time to Grant
Low
PTA Risk
Based on 547 resolved cases by this examiner. Grant probability derived from career allow rate.

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