USPTO Examiner HENDRICKSON STUART L - Art Unit 1736

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19193772g-C3N4@CuO/MgAl2O4 NANOCOMPOSITE FOR PHOTOCATALYTIC DEGRADATION OF POLLUTANTS IN CONTAMINATED WATERApril 2025June 2025Allow200NoNo
18889921MESOPOROUS CARBON SORBENTS AND RELATED METHODSSeptember 2024December 2025Allow1521YesNo
18816364SYSTEMS AND METHODS FOR PRODUCING LITHIUM CARBONATE AND USES THEREOFAugust 2024February 2025Allow510NoNo
18810367ELECTRICALLY HEATED SUBSTRATES, ASSEMBLIES, SYSTEMS, AND PROCESSES FOR CATALYTIC, CHEMICAL, AND SORBENT APPLICATIONSAugust 2024August 2025Allow1121NoNo
18778707METHOD OF MAKING CARBON BLACKJuly 2024August 2025Allow1320NoNo
18769150CARBON-BASED COMPOSITIONS WITH HIGHLY EFFICIENT VOLUMETRIC GAS SORPTIONJuly 2024September 2025Allow1511NoNo
18766537CARBONATION OF CONCRETE AGGREGATESJuly 2024August 2025Allow1330NoNo
18725053MINERALIZED IRON-CARBON COMPOSITE MATERIAL, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOFJune 2024October 2025Allow1630NoNo
18747325METHOD FOR PREPARING NITROGEN/SULFUR-DOPED ACTIVATED CARBONJune 2024June 2025Allow1121NoNo
18743569Vertical Branched GrapheneJune 2024December 2025Abandon1820NoNo
18667806CARBON-CARBON COMPOSITE SORBENT FORMULATIONS FOR CARBON DIOXIDE ADSORPTION, AND RELATED METHODSMay 2024September 2025Allow1631YesNo
18638484CARBON BLACK GENERATING SYSTEMApril 2024February 2025Allow1010NoNo
18613340METHODS FOR PREPARING CARBON MATERIALSMarch 2024October 2025Abandon1901NoNo
18581888HIGH TEMPERATURE HEAT INTEGRATION METHOD OF MAKING CARBON BLACKFebruary 2024February 2026Allow2411NoNo
18430993EFFICIENT MICROWAVE PREPARATION METHOD WITH ONE-STEP SIMULTANEOUS REDUCTION/EMBEDDING AND APPLICATION OF METAL MONATOMIC-DOPED REDUCED GRAPHENE OXIDE DIELECTRIC MATERIALFebruary 2024July 2024Allow501NoNo
18429225PROCESS FOR COLD ENERGY UTILIZATION FROM A LIQUID CARBON DIOXIDE RECEIVING FACILITYJanuary 2024October 2025Abandon2030NoNo
18407273PREPARATION OF POLYMERIC RESINS AND CARBON MATERIALSJanuary 2024August 2025Allow1930YesNo
18398695Carbon Composite, and Preparation Method and Use ThereofDecember 2023August 2024Allow810NoNo
18392697METHOD FOR PRODUCING SODA ASHDecember 2023October 2024Allow1020YesNo
18543750BIOGENIC ACTIVATED CARBON AND METHODS OF MAKING AND USING SAMEDecember 2023January 2026Allow2510NoNo
18517249PROCESSING OF LITHIUM CONTAINING BRINESNovember 2023November 2024Allow1220NoNo
18504240SYSTEM AND METHOD FOR SEPARATION OF SALTS AND CARBON ALLOTROPESNovember 2023May 2025Allow1800NoNo
18472194CARBON DIOXIDE SEQUESTRATION WITH MAGNESIUM HYDROXIDE AND REGENERATION OF MAGNESIUM HYDROXIDESeptember 2023August 2024Allow1110NoNo
18367403METHOD FOR FORMING INSOLUBLE SOLUTE ADDUCTS USING AN ACIDIC MEDIUMSeptember 2023October 2024Abandon1310NoNo
18278902NANOPOROUS SPONGES FOR WATER ADSORPTION, PROCESS FOR PREPARING THE SAME AND USES THEREOFAugust 2023October 2024Abandon1320NoNo
18456428PREPARATION OF POLYMERIC RESINS AND CARBON MATERIALSAugust 2023January 2024Allow510NoNo
18456351PREPARATION OF POLYMERIC RESINS AND CARBON MATERIALSAugust 2023May 2024Allow920NoNo
18455465Biologically-Derived Carbon Black Alternative And Method Of Making The SameAugust 2023May 2025Allow2120NoNo
18451766METAL-DECORATED BARIUM CALCIUM ALUMINUM OXIDE AND RELATED MATERIALS FOR NH3 CATALYSISAugust 2023November 2024Allow1510NoNo
18260031MINERALIZATION METHOD OF CALCIUM CHLORIDE-TYPE FROM LITHIUM-CONTAINING SALT LAKE BRINE BY EVAPORATION AND BRINE MIXINGJune 2023July 2025Abandon2421NoNo
18206723PROCESS FOR THE PREPARATION OF A POROUS CARBON MATERIAL USING AN IMPROVED AMPHIPHILIC SPECIESJune 2023March 2025Allow2121NoNo
18328634CARBON-BASED COMPOSITIONS WITH HIGHLY EFFICIENT VOLUMETRIC GAS SORPTIONJune 2023April 2024Allow1020NoNo
18036972Method for the manufacture of a self-standing graphene oxide or reduced graphene oxide filmMay 2023November 2025Allow3000NoNo
18196576SORBENT STRUCTURES WITH RESISTIVE HEATING CAPABILITY AND METHODS OF MAKING THE SAMEMay 2023April 2024Allow1110NoNo
18302597PREPARATION OF POLYMERIC RESINS AND CARBON MATERIALSApril 2023February 2024Allow1020NoNo
18299341PREPARATION OF POLYMERIC RESINS AND CARBON MATERIALSApril 2023May 2024Abandon1310NoNo
18297478METHODS FOR SOL-GEL POLYMERIZATION IN ABSENCE OF SOLVENT AND CREATION OF TUNABLE CARBON STRUCTURE FROM SAMEApril 2023August 2024Allow1620NoNo
18030316METHOD FOR REMOVING OXYGEN MOLECULE AND METHOD FOR PURIFYING CARBON MONOXIDEApril 2023October 2025Allow3000NoNo
18295971IMPURITY REMOVAL AND MODIFICATION METHOD FOR PYROLYSIS CARBON BLACK OF WASTE TIRESApril 2023January 2026Allow3310NoNo
18295443METHODS FOR EXTRACTING LITHIUM FROM BRINESApril 2023January 2026Allow3310YesNo
18026167PROCESSES FOR THE PREPARATION OF EXPANDED GRAPHITE AND EXFOLIATED GRAPHENE OXIDEMarch 2023October 2025Allow3200NoNo
18044003METHODS AND SYSTEMS FOR PRODUCING SOLID INORGANIC CARBONATE AND BICARBONATE COMPOUNDSMarch 2023December 2025Allow3310NoNo
18101345Processing System and Method for Producing a Particulate MaterialJanuary 2023August 2024Allow1930NoNo
18006700METHOD FOR RECYCLING CARBONACEOUS BY-PRODUCTSJanuary 2023August 2023Allow710NoNo
18017360PROCESS TO CONDUCT ENDOTHERMIC DIRECT PYROLYSIS OF METHANE IN A FLUIDIZED BED REACTORJanuary 2023April 2024Allow1520YesNo
18096947FABRICATION OF MICROMODELS FOR CARBONATE RESERVOIRSJanuary 2023August 2023Allow710NoNo
18012772ANTIBACTERIAL HYPER-BRANCHED POLYMER AND ANTIBACTERIAL SPHERICAL ACTIVATED CARBON USING THE SAMEDecember 2022January 2026Abandon3710NoNo
18081013BIOLOGICAL INKS AND COATINGS AND ASSOCIATED METHODSDecember 2022November 2024Allow2330NoNo
18000971CATALYTIC OXIDATION OF CARBON BLACK EXHAUST GASDecember 2022October 2024Allow2230YesNo
18059381METHOD AND APPARATUS FOR PRODUCING HYDROGEN AND POLYMERIZED CARBON COMPOUNDNovember 2022November 2025Abandon3601NoNo
17991409METHOD FOR FORMING INSOLUBLE SOLUTE ADDUCTS USING AN ACIDIC MEDIUMNovember 2022June 2023Allow1750NoNo
18054473CARBON DIOXIDE SEQUESTRATION WITH MAGNESIUM HYDROXIDE AND REGENERATION OF MAGNESIUM HYDROXIDENovember 2022May 2023Allow700NoNo
17923943ORGANIC WASTE RECYCLING APPARATUS, AND RECYCLING METHOD THEREFORNovember 2022January 2026Abandon3810NoNo
18046723SYSTEM FOR HIGH TEMPERATURE CHEMICAL PROCESSINGOctober 2022April 2023Allow600NoNo
17918962SYSTEM AND METHOD FOR REMOVAL OF CARBON FROM CARBON DIOXIDEOctober 2022August 2023Allow1110NoNo
17938591TORCH STINGER METHOD AND APPARATUSOctober 2022February 2024Allow1610NoNo
17959913AQUEOUS ROUTE TO NITROGEN-DOPED MESOPOROUS CARBONSOctober 2022September 2023Allow1100NoNo
17937352LEAK DETECTION AND/OR PREVENTION FOR HIGH TEMPERATURE THERMAL PROCESS SYSTEMSSeptember 2022February 2026Allow4011YesNo
17951308HIGH THROUGHPUT METHANE PYROLYSIS REACTOR FOR LOW-COST HYDROGEN PRODUCTIONSeptember 2022February 2024Allow1730NoNo
17949922HIGH THROUGHPUT METHANE PYROLYSIS REACTOR FOR LOW-COST HYDROGEN PRODUCTIONSeptember 2022January 2024Allow1620NoNo
17944946PREPARATION OF POLYMERIC RESINS AND CARBON MATERIALSSeptember 2022March 2023Allow611NoNo
17894040BORON-SULFUR-CODOPED POROUS CARBON MATERIAL AND PREPARATION METHOD AND USE THEREOFAugust 2022January 2026Allow4111NoNo
17821046CYCLOPROPENIMINES FOR MINERALIZATION OF CARBON DIOXIDEAugust 2022September 2025Allow3710NoNo
17887296PREPARATION OF POLYMERIC RESINS AND CARBON MATERIALSAugust 2022March 2023Allow721YesNo
17797159MOLDED ADSORBENT AND WATER PURIFICATION CARTRIDGEAugust 2022October 2025Abandon3810NoNo
17876884ZINC CARBONATE, STABLE NANO ZINC OXIDE, AND METHODS OF MAKING THE SAMEJuly 2022September 2023Allow1411NoNo
17873422METHODS FOR PREPARING HARD CARBON PRODUCTS BY SULFURIZATION AND OXIDATION PROCESSESJuly 2022October 2025Allow3810NoNo
17873953ALKALINE CATION ENRICHMENT AND WATER ELECTROLYSIS TO PROVIDE CO2 MINERALIZATION AND GLOBAL-SCALE CARBON MANAGEMENTJuly 2022August 2024Allow2540NoNo
17859592HALOGENATED ACTIVATED CARBON COMPOSITIONS AND METHODS OF MAKING AND USING SAMEJuly 2022September 2024Allow2610NoNo
17860011PREPARATION OF POLYMERIC RESINS AND CARBON MATERIALSJuly 2022April 2023Allow900NoNo
17858638POLYMER-MONOLITH PRE-OXIDATION TO IMPROVE SHAPE RETENTION DURING SUBSEQUENT HEAT TREATMENT, AND MONOLITH PRODUCEDJuly 2022July 2025Allow3620NoNo
17809644USING CONVERTED SOLID CARBON FROM CAPTURED CARBON DIOXIDE TO POWER WELLBORE EQUIPMENTJune 2022February 2024Abandon2020YesYes
17809871METHODS, PROCESSES AND SYSTEMS FOR THE PRODUCTION OF HYDROGEN & CARBON FROM WASTE, BIOGENIC WASTE AND BIOMASSJune 2022August 2025Abandon3810NoNo
17788597CARBON MOLECULAR SIEVE ADSORBENT MONOLITHS AND METHODS FOR MAKING THE SAMEJune 2022November 2025Allow4111NoNo
17786968Continuous Production of Clathrate Hydrates From Aqueous and Hydrate-Forming Streams, Methods and Uses ThereofJune 2022November 2025Allow4121NoNo
17836395Processing System and Method for Producing a Particulate MaterialJune 2022October 2023Allow1720NoNo
17806167CARBON NANOTUBE (CNT)-BASED THREE-DIMENSIONAL ORDERED MACROPOROUS (3DOM) CARBON MATERIAL AND PREPARATION METHOD THEREOFJune 2022May 2025Allow3510NoNo
17830816COMPOSITION OF AND METHOD FOR OPTIMIZING A CATALYTIC REACTIONJune 2022January 2026Allow4411YesNo
17743836COLUMN FILLER FOR LIQUID CHROMATOGRAPHYMay 2022August 2023Abandon1510NoNo
17776824METHOD AND DEVICE FOR PRODUCING HYDROGEN AND PYROLYTIC CARBON FROM HYDROCARBONSMay 2022May 2025Allow3610NoNo
17742434HALOGENATED ACTIVATED CARBON COMPOSITIONS AND METHODS OF MAKING AND USING SAMEMay 2022September 2024Allow2910NoNo
17742089METHOD OF MAKING ACTIVATED CARBON SORBENT FROM SEAGRASS FOR ORGANIC POLLUTANT REMOVAL FROM WATERMay 2022October 2022Allow511YesNo
17755539SO2 ADSORPTION MATERIAL, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF, AND METHOD FOR REMOVING SO2 FROM FLUE GAS CONTAINING SO2April 2022November 2025Allow4220NoNo
17733860SYSTEM AND METHOD FOR USING ULTRAMICROPOROUS CARBON FOR THE SELECTIVE REMOVAL OF NITRATE WITH CAPACITIVE DEIONIZATIONApril 2022February 2026Allow4630NoNo
17718451BACTERIA BIOCHAR ADSORBENTApril 2022April 2023Allow1210NoNo
17717212ACTIVATED METAL LOW TEMPERATURE REACTION PROCESSES AND PRODUCTSApril 2022March 2026Abandon4711NoNo
17717544METHODS, APPARATUSES, AND ELECTRODES FOR CARBIDE-TO-CARBON CONVERSION WITH NANOSTRUCTURED CARBIDE CHEMICAL COMPOUNDSApril 2022December 2025Abandon4410NoNo
17716783METAL-DECORATED BARIUM CALCIUM ALUMINUM OXIDE AND RELATED MATERIALS FOR NH3 CATALYSISApril 2022May 2023Allow1410NoNo
17683078STATIC MIXERS FOR CONTINUOUS FLOW CATALYTIC REACTORSFebruary 2022April 2025Allow3710NoNo
17753068PER- AND POLYFLUOROALKYL COMPOUND-ADSORBING ACTIVATED CARBONFebruary 2022August 2025Allow4240NoNo
17630431LIQUID ABSORBING BODYJanuary 2022December 2025Allow4711NoNo
17627083MODIFIED CARBON BLACK AND PRODUCTION METHOD THEREFOR, RESIN COMPOSITION, AND COPPER CLAD LAMINATEJanuary 2022September 2025Allow4421YesNo
17624420Processing and Purification of Carbonaceous MaterialsJanuary 2022February 2025Allow3710NoNo
17621313Method for Producing a Carbonate Bonded, Compacted ArticleDecember 2021January 2025Allow3700NoNo
17621149FILTERING MATERIAL AND FILTER FOR RETAINING POLYAROMATIC HYDROCARBONS, CARBONYLS AND OTHER COMPOUNDS FROM SMOKE FROM TOBACCO PRODUCTSDecember 2021November 2024Allow3510NoNo
17616641Preparation of Hydrous Graphene Oxide for Use as a Concrete AdmixtureDecember 2021August 2025Allow4421NoNo
17596027PROCESS AND INTEGRATED PLANT FOR THE TREATMENT OF THE CARBON OXIDES FORMED IN THE PRODUCTION OF ALUMINUMDecember 2021March 2025Allow3920YesNo
17539825LITHIUM CARBONATE PRODUCTION PROCESS AND APPARATUSDecember 2021January 2025Allow3720NoNo
17423392Cellulose Nanofiber Carbon and Method for Producing SameNovember 2021December 2024Allow4110NoNo
17613588CHROMATOGRAPHIC MEDIA AND METHODS OF MAKING AND USING SAMENovember 2021July 2025Allow4411NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner HENDRICKSON, STUART L.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
21
Examiner Affirmed
13
(61.9%)
Examiner Reversed
8
(38.1%)
Reversal Percentile
59.7%
Higher than average

What This Means

With a 38.1% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is above the USPTO average, indicating that appeals have better success here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
89
Allowed After Appeal Filing
28
(31.5%)
Not Allowed After Appeal Filing
61
(68.5%)
Filing Benefit Percentile
48.2%
Lower than average

Understanding Appeal Filing Strategy

Filing a Notice of Appeal can sometimes lead to allowance even before the appeal is fully briefed or decided by the PTAB. This occurs when the examiner or their supervisor reconsiders the rejection during the mandatory appeal conference (MPEP § 1207.01) after the appeal is filed.

In this dataset, 31.5% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is below the USPTO average, suggesting that filing an appeal has limited effectiveness in prompting favorable reconsideration.

Strategic Recommendations

Appeals to PTAB show good success rates. If you have a strong case on the merits, consider fully prosecuting the appeal to a Board decision.

Filing a Notice of Appeal shows limited benefit. Consider other strategies like interviews or amendments before appealing.

Examiner HENDRICKSON, STUART L - Prosecution Strategy Guide

Executive Summary

Examiner HENDRICKSON, STUART L works in Art Unit 1736 and has examined 839 patent applications in our dataset. With an allowance rate of 73.9%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 32 months.

Allowance Patterns

Examiner HENDRICKSON, STUART L's allowance rate of 73.9% places them in the 38% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by HENDRICKSON, STUART L receive 2.16 office actions before reaching final disposition. This places the examiner in the 59% percentile for office actions issued. This examiner issues a slightly above-average number of office actions.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by HENDRICKSON, STUART L is 32 months. This places the examiner in the 50% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +9.2% benefit to allowance rate for applications examined by HENDRICKSON, STUART L. This interview benefit is in the 41% percentile among all examiners. Recommendation: Interviews provide a below-average benefit with this examiner.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 23.6% of applications are subsequently allowed. This success rate is in the 33% percentile among all examiners. Strategic Insight: RCEs show below-average effectiveness with this examiner. Carefully evaluate whether an RCE or continuation is the better strategy.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 51.8% of cases where such amendments are filed. This entry rate is in the 78% percentile among all examiners. Strategic Recommendation: This examiner is highly receptive to after-final amendments compared to other examiners. Per MPEP § 714.12, after-final amendments may be entered "under justifiable circumstances." Consider filing after-final amendments with a clear showing of allowability rather than immediately filing an RCE, as this examiner frequently enters such amendments.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 20.7% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 27% percentile among all examiners. Note: Pre-appeal conferences show below-average success with this examiner. Consider whether your arguments are strong enough to warrant a PAC request.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 72.7% of appeals filed. This is in the 61% percentile among all examiners. Of these withdrawals, 46.4% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner shows above-average willingness to reconsider rejections during appeals. The mandatory appeal conference (MPEP § 1207.01) provides an opportunity for reconsideration.

Petition Practice

When applicants file petitions regarding this examiner's actions, 55.9% are granted (fully or in part). This grant rate is in the 58% percentile among all examiners. Strategic Note: Petitions show above-average success regarding this examiner's actions. Petitionable matters include restriction requirements (MPEP § 1002.02(c)(2)) and various procedural issues.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 1.0% of allowed cases (in the 67% percentile). This examiner makes examiner's amendments more often than average to place applications in condition for allowance (MPEP § 1302.04).

Quayle Actions: This examiner issues Ex Parte Quayle actions in 10.0% of allowed cases (in the 89% percentile). Per MPEP § 714.14, a Quayle action indicates that all claims are allowable but formal matters remain. This examiner frequently uses Quayle actions compared to other examiners, which is a positive indicator that once substantive issues are resolved, allowance follows quickly.

Prosecution Strategy Recommendations

Based on the statistical analysis of this examiner's prosecution patterns, here are tailored strategic recommendations:

  • Consider after-final amendments: This examiner frequently enters after-final amendments. If you can clearly overcome rejections with claim amendments, file an after-final amendment before resorting to an RCE.

Relevant MPEP Sections for Prosecution Strategy

  • MPEP § 713.10: Examiner interviews - available before Notice of Allowance or transfer to PTAB
  • MPEP § 714.12: After-final amendments - may be entered "under justifiable circumstances"
  • MPEP § 1002.02(c): Petitionable matters to Technology Center Director
  • MPEP § 1004: Actions requiring primary examiner signature (allowances, final rejections, examiner's answers)
  • MPEP § 1207.01: Appeal conferences - mandatory for all appeals
  • MPEP § 1214.07: Reopening prosecution after appeal

Important Disclaimer

Not Legal Advice: The information provided in this report is for informational purposes only and does not constitute legal advice. You should consult with a qualified patent attorney or agent for advice specific to your situation.

No Guarantees: We do not provide any guarantees as to the accuracy, completeness, or timeliness of the statistics presented above. Patent prosecution statistics are derived from publicly available USPTO data and are subject to data quality limitations, processing errors, and changes in USPTO practices over time.

Limitation of Liability: Under no circumstances will IronCrow AI be liable for any outcome, decision, or action resulting from your reliance on the statistics, analysis, or recommendations presented in this report. Past prosecution patterns do not guarantee future results.

Use at Your Own Risk: While we strive to provide accurate and useful prosecution statistics, you should independently verify any information that is material to your prosecution strategy and use your professional judgment in all patent prosecution matters.