← Every company
Donaldson Company Inc Patents
What Donaldson Company Inc has filed at the patent office — applications as well as grants, because a filing is on the record eighteen months before anyone has to say what it was for.
DCI on carbonthat →Filings on file
59
Granted
1
Still pending
58
Filed under
2 names
59 filings
Newest filing first. A pending application has no patent number yet, and most never get one.
| Invention | Patent |
|---|---|
| ADSORBENT FILTER ASSEMBLYB01D 46/0036, B01D 53/261, B01D 46/0001, B01D 46/543, B01D 53/0415, B01D2257/553, B01D2257/702, B01D2257/708, B01D2257/80, B01D2258/02, B01D2279/45, B01J 20/2805, B01J 20/28052, G11B 33/1453, G11B 33/146Filed as Donaldson Company, Inc.2026-06-11Daniel L. Tuma | pending |
| SYSTEM AND METHOD FOR DEAERATIONB01D 19/0031, B01D 19/0042, B01D 19/02, B01D2239/1216, B01D2239/1266, B01D2239/1291, F01P 11/028, F15B 1/26, F15B 21/044, F16N 39/002Filed as Donaldson Company, Inc.2026-06-11Michael J. Cronin | pending |
| ACTIVE PRECLEANER SYSTEM AND METHODS OF USEB01D 46/2411, B01D 46/527, Y02A 50/2351, B01D 50/20, B01D 46/446, B01D 46/48, B01D2279/60, F02M 35/0208, F02M 35/0216, F02M 35/084, F02M 35/09, F02M 35/1038Filed as Donaldson Company, Inc.2026-05-26Jason P. MCCONNELL | pending |
| FILTER SYSTEMS WITH FILTER BAG ASSEMBLIES INCLUDING FILTER BAGS WITH RADIAL SEAL GASKETSB01D 46/0005, B01D 46/02, B01D 46/04, B01D 46/71, B01D 46/0006, B01D 46/023, B01D 46/06, B01D 46/4227, B01D2271/027Filed as Donaldson Company, Inc.2026-05-11Stephan A. Graham | pending |
| FLUORINE-FREE HYDROPHOBIC PERMEABLE MATERIALB01D 67/0088, C08J 9/365, B01D 69/02, B01D 71/12, B01D 71/16, B01D 71/36, B01D 71/68, B01D 71/70, B01D2323/04, B01D2325/38, B65D 51/1616, C08J2301/12, C08J2483/04, C09D 183/04Filed as Donaldson Company, Inc.2026-04-10Stephen K. Sontag | pending |
| FLUID CONDITION SENSING SYSTEM AND METHODSF01M 11/10, G01N 27/221, F01M2011/14, F01M2011/1413, F01M2011/146, F01M2011/1473, F01M2011/148, F16N2200/00, F16N2200/10, F16N2200/12, F16N2210/04, F16N2230/00, F16N2230/02, F16N2260/18, G01D 21/02, G01N 27/046, G01N 27/223, G01N 33/2888Filed as Donaldson Company, Inc.2026-04-03Nathan D. Zambon | pending |
| HYDRODYNAMIC SEPARATOR WITH OPTIMAL MICROCHANNEL LENGTHB01D 21/0087, B01D 21/265, G01N 15/00Filed as Donaldson Company, Inc.2026-04-02Davis B. Moravec | pending |
| FILTER ELEMENT FOR USE WITH DUST COLLECTOR & OTHER APPLICATIONSB01D 46/525, B01D 46/0002, B01D 46/0039, B01D 46/0043, B01D 46/0049, B01D2271/022Filed as Donaldson Company, Inc.2026-04-01Kevin Fletcher | pending |
| CASSETTEB01D 63/0822, B01D2313/041, B01D2313/131, B01D 69/12, B01D2313/08, B01D2313/105, B01D2313/125, B01D2313/13, B01D2313/16Filed as Donaldson Company, Inc.2026-03-25Matthew P. Brownson | pending |
| CASSETTEFiled as DONALDSON COMPANY, INC.2026-03-25MATTHEW P. BROWNSON | pending |
| FILTER ARRANGEMENTS FOR LIQUIDS AND METHODS OF USEB01D 27/08, B01D 29/21, B01D 29/58, B01D2201/12, B01D2201/291, B01D2201/295, B01D2201/303, B01D2201/342, B01D2201/347, B01D2201/4007, B01D2201/4015, B01D2201/4046, B01D2201/4053, B01D2201/4092Filed as Donaldson Company, Inc.2026-03-23Michael S. Courneya | pending |
| FILTER ARRANGEMENTS FOR LIQUIDS AND METHODS OF USEFiled as DONALDSON COMPANY, INC.2026-03-23MICHAEL S. COURNEYA | pending |
| FILTER ARRANGEMENTS FOR LIQUIDS AND METHODS OF USEB01D 29/21, B01D 35/306, B01D 27/08, B01D2201/295, B01D2201/303, B01D2201/347, B01D2201/40, B01D2201/4007, B01D2201/4015, B01D2201/4046, B01D2201/4053, B01D2201/4084, B01D2201/4092Filed as Donaldson Company, Inc.2026-03-23Michael S. Courneya | pending |
| OBSERVATION DEVICEFiled as DONALDSON COMPANY, INC.2026-02-27JOE A. JAYE | pending |
| Observation DeviceB01L 3/502753, G01N 21/03, B01L 3/502723, B01L2200/0684, B01L2300/047, B01L2300/0681, B01L2300/069, B01L2300/0816, B01L2300/0858, B01L2400/0406, G01N2021/0346Filed as Donaldson Company, Inc.2026-02-27Joe A. Jaye | pending |
| VENT ASSEMBLYH05K 5/0216, F16K 17/16, F16K 17/19, H01M 50/3425, H01M 50/308, F16K 17/18, F16K 17/403, F16K 27/0236, F16K 27/12Filed as Donaldson Company, Inc.2026-02-10Suresh B. Bommineni | pending |
| PRESSURE RELIEF ASSEMBLYF16K 17/04, F16K 17/0413, H01M 50/109, H01M 50/333, F16K 17/025, F16K 17/042, F16K 27/02Filed as Donaldson Company, Inc.2026-01-29Matthew J. Goode | pending |
| CURVED CORE FOR VARIABLE PLEAT FILTERB01D 46/2403, B01D 46/2411, B01D 46/522, B01D 29/13, B01D 46/525, B01D2201/04, B01D2201/122, B01D2265/06Filed as DONALDSON COMPANY, INC.2026-01-26Nicholas J. Stanley | pending |
| FILTER ELEMENT WITH INTEGRATED DRAIN FILTERB01D 29/232, B01D 35/147, B01D 29/54, B01D 29/58, B01D 35/0276, B01D2201/291, B01D2201/295, B01D2201/302, B01D2201/347, B01D2201/46Filed as Donaldson Company, Inc.2026-01-12Gary H. Gift | pending |
| EXHAUST AFTERTREATMENT DEVICEFiled as DONALDSON COMPANY, INC.2026-01-05NAVEEN SRIDHARAN | pending |
| BREATHER ASSEMBLY AND SYSTEMFiled as DONALDSON COMPANY, INC.2025-12-16DANIEL J. DOTZLER | pending |
| FILTRATION SYSTEM WITH ONLINE FILTER MAINTENANCE CAPABILITYB01D 46/58, B01D 46/71, B01D 46/442, B01D 46/446, B01D 46/46, B01D2279/60, G01N 15/08, G01N2015/084Filed as Donaldson Company, Inc.2025-12-09Olivier Ronneau | pending |
| FILTER ELEMENTS, RELATED FILTER ASSEMBLY AND FILTER PACKAGEB01D 46/2414, B01D 46/0005, B01D 46/0098, B01D 46/4227, B01D 46/521, B01D2201/0407, B01D2201/0415, B01D2265/026, B01D2265/028, B01D2265/06, B01D2271/022, B01D2271/027, B01D2279/60Filed as Donaldson Company, Inc.2025-12-08Bart CATOOR | pending |
| PLEATED MEDIA FILTER PACK, METHOD FOR MANUFACTURING A PLEATED MEDIA FILTER PACK, AND PLEAT SPACING DEVICEFiled as DONALDSON COMPANY, INC.2025-12-05VINCENT KAYAERTS | pending |
| STACKED FILTER ARRANGEMENTB01D 46/0005, B01D 46/62, B01D 46/88, B01D 46/023, B01D 46/12, B01D2265/025Filed as Donaldson Company, Inc.2025-11-18Abbas SALHAB | pending |
| AIR FILTRATION MONITORING SYSTEM WITH LEARNING FEATURESF24F 11/39, B01D 46/429, F24F 11/84, B01D 46/0086, B01D 46/06, B01D 46/42, B01D 46/446, B01D 46/46Filed as Donaldson Company, Inc.2025-11-14Chad M. Goltzman | pending |
| MAINTENANCE OF HYDRODYNAMIC SEPARATORSB01D 17/0217, B01D 21/34, B08B 9/027, B01D 21/0024, B01D 21/26, B01D2221/10, B01L 3/502753, B08B 9/0325Filed as Donaldson Company, Inc.2025-11-10Davis B. Moravec | pending |
| COOLANT ION EXCHANGE ASSEMBLIES AND METHODSFiled as DONALDSON COMPANY, INC.2025-10-31JARED WERTZ | pending |
| COOLANT ION EXCHANGE ASSEMBLIES AND METHODSFiled as DONALDSON COMPANY, INC.2025-10-31JARED WERTZ | pending |
| FILTER ELEMENT WITH AXIAL FLEXIBLE FEATURE IN END CAPFiled as DONALDSON COMPANY, INC.2025-10-30BART CATOOR | pending |
| FILTER ASSEMBLIES AND RELATED FILTER ELEMENTSB01D 35/14, B01D 35/30, B01D 29/11, B01D 35/306, B01D 46/2411, B01D2201/291, B01D2201/295, B01D2201/301, B01D2201/302, B01D2201/305, B01D2201/34, B01D2201/4015, B01D2201/4046, B01D2201/4061, B01D2201/4084, B01D2201/4092Filed as Donaldson Company, Inc.2025-10-27Miloslav KRYSTUFEK | pending |
| EXHAUST AFTERTREATMENT SYSTEMF01N 13/0093, F01N 3/2892, F01N 13/009, Y02A 50/20, B01F 25/431, B01D 53/9431, B01D 53/944, B01D 53/9477, B01D2251/2067, B01D2251/208, B01D2257/404, B01D2258/012, F01N 3/021, F01N 3/2066, F01N 3/2803, F01N2240/20, F01N2610/02, F01N2610/1453Filed as Donaldson Company, Inc.2025-10-17Naveen SRIDHARAN | pending |
| SYSTEM AND METHOD FOR FILTERING BEVERAGESA23L 2/02, A23L 2/74, C12H 3/02, B01D 61/149, B01D 61/146, A23B 2/94, A23B 2/05, A23B 70/30, A61L2103/05, A23L 2/082, A23L 2/087, A23L 2/10, A23L 2/72, A23V2002/00, A23V2300/24, A23V2300/34, A61L 2/022, A61L 2/04, B01D 61/025, B01D 61/145, B01D 61/147, B01D 61/18, B01D 61/20, B01D 61/58, B01D 65/10, B01D2311/06, B01D2311/2692, B01D2315/10, B01D2317/022, B01D2317/025, C12H 1/063, C12H 1/16, C12H 1/165, C12H 1/18Filed as Donaldson Company, Inc.2025-10-15Matthew R. Otterstatter | pending |
| SYSTEM AND METHOD FOR FILTERING BEVERAGESA23L 2/02, A23L 2/74, C12H 3/02, B01D 61/149, B01D 61/146, A23B 2/94, A23B 2/05, A23B 70/30, A61L2103/05, A23L 2/082, A23L 2/087, A23L 2/10, A23L 2/72, A23V2002/00, A23V2300/24, A23V2300/34, A61L 2/022, A61L 2/04, B01D 61/025, B01D 61/145, B01D 61/147, B01D 61/18, B01D 61/20, B01D 61/58, B01D 65/10, B01D2311/06, B01D2311/2692, B01D2315/10, B01D2317/022, B01D2317/025, C12H 1/063, C12H 1/16, C12H 1/165, C12H 1/18Filed as Donaldson Company, Inc.2025-10-15Matthew R. Otterstatter | pending |
| EXHAUST TREATMENT DEVICEB01F 25/3141, F01N 3/2892, B01F 25/103, B01F 25/4231, B01F 23/2132, B01D 53/94, B01D2259/4566, F01N 3/2066, F01N2240/20, F01N2610/02, F01N2610/03, F01N2610/1453, Y02T 10/12Filed as Donaldson Company, Inc.2025-10-15Naveen Sridharan | pending |
| EXHAUST TREATMENT DEVICEFiled as DONALDSON COMPANY, INC.2025-10-15NAVEEN SRIDHARAN | pending |
| SYSTEMS AND METHODS FOR VARNISH DETECTIONG01N 27/12, G01N 33/2805, G01N 9/002, G01N 9/26, G01N 11/04, G01N 27/10, G01N 27/205, G01N 27/221, G01N 33/2888, G01N2009/006Filed as Donaldson Company, Inc.2025-10-03Giancarlo M. Izzi | pending |
| FILTRATION DEVICES AND ASSOCIATED FILTER ELEMENTB01D 29/21, B01D 35/306, B01D 29/33, B01D 35/027, B01D 35/14, B01D 35/147, B01D2201/0461, B01D2201/295, B01D2201/301, B01D2201/316, B01D2201/4046, B01D2201/4053, B01D2201/4092Filed as Donaldson Company, Inc.2025-09-23Mirko Massara | pending |
| NONWOVEN FILTRATION MEDIA INCLUDING MICROFIBRILLATED CELLULOSE FIBERSD04H 1/43828, B01D 39/1607, D04H 1/43835, D04H 1/43838, B01D 39/1615, B01D 39/1623, B01D 39/18, B01D 39/2017, B01D2239/064, B01D2239/1233, D04H 1/425Filed as Donaldson Company, Inc.2025-09-15Janelle M. Hampton | pending |
| AFFINITY MEMBRANE AND METHOD OF PREPARATIONB01D 67/0088, B01J 20/28033, B01J 20/3274, B01D 15/3809, B01D 67/0093, B01D 69/105, B01D 69/144, B01D 71/10, B01D2323/16, B01J 20/262, B01J 20/28038, B01J 20/281, B01J 20/3212, C07K 1/22, C07K 16/00Filed as Donaldson Company, Inc.2025-09-09Jinxiang Zhou | pending |
| FILTER ELEMENTS AND ASSEMBLIESB01D 46/0005, B01D 46/2414, B01D 46/525, B01D2265/021, B01D2265/026, B01D2265/05, B01D2265/06, B01D2271/027, B01D2279/60Filed as Donaldson Company, Inc.2025-08-29Steven K. CAMPBELL | pending |
| PULSE JET CLEANING SYSTEMS FOR CONSTRUCTION EQUIPMENTFiled as DONALDSON COMPANY, INC.2025-08-27JOEL J. FINNICUM | pending |
| FILTER ELEMENTS, RELATED FILTER ASSEMBLY AND FILTER PACKAGEB01D 46/2414, B01D 46/645, B01D 46/0004, B01D 46/521, B01D2271/027, B01D2275/201, B01D2275/203Filed as Donaldson Company, Inc.2025-08-08Bart CATOOR | pending |
| FILTER HOUSING COVER AND RELATED FILTER ASSEMBLYB01D 46/0004, B01D 46/2414, B01D 46/4227, B01D2265/026, B01D2271/027Filed as Donaldson Company, Inc.2025-08-08Bart CATOOR | pending |
| FILTER ELEMENTS AND RELATED FILTER ASSEMBLYB01D 46/2414, B01D 46/521, B01D2271/027, B01D2275/203Filed as Donaldson Company, Inc.2025-08-08Bart CATOOR | pending |
| SYSTEMS FOR DETECTION OF BYPASS VALVE ACTUATION USING PRESSURE DATAB01D 27/101, B01D 27/103, F15B 19/005, F15B 21/041, F15B2211/615, F15B2211/6306Filed as Donaldson Company, Inc.2025-08-05Michael J. Cronin | pending |
| PRESSURE RELIEF ASSEMBLYFiled as DONALDSON COMPANY, INC.2025-08-01MATTHEW J. GOODE | pending |
| Pressure Relief AssemblyF16K 15/148, F16K 17/164, H01M 50/325, H05K 5/0216, F01M 13/0011, F01M2013/0016, F16H 57/027, F16K 21/02, F16K 24/04Filed as Donaldson Company, Inc.2025-08-01Matthew J. Goode | pending |
| CONDUCTIVE COATINGS AND METHODS OF MAKING THE SAMEH01M 4/366, H01M 4/62, C08G 61/126, C08G2261/1424, C08G2261/3223, C08G2261/794, C23C 16/50, H01B 1/122, H01B 1/127, H01M 4/0428, H01M 4/13, H01M 4/624, H01M2004/021, Y02E 60/10Filed as Donaldson Company, Inc.2025-07-30Madeline C. Peterson | pending |
| CONDUCTIVE COATINGS AND METHODS OF MAKING THE SAMEFiled as DONALDSON COMPANY, INC.2025-07-30MADELINE C. PETERSON | pending |
| FILTER HOUSING WITH DROP OUT CHAMBER AND METHODSB01D 45/06, B01D 46/0005, B01D 50/20, B01D 46/0004, B01D 46/0041, B01D 46/10, B01D 46/521, B01D2201/304, B01D2201/305Filed as Donaldson Company, Inc.2025-07-24Ross C. J. Stoneham | pending |
| ADJUSTABLE PRESSURE RELIEF ASSEMBLYFiled as DONALDSON COMPANY, INC.2025-07-24DANIEL P. LITTLE | pending |
| FILTER ASSEMBLY, RELATED FILTER ELEMENTS AND HOUSING COVERB01D 46/0004, B01D 46/2414, B01D 46/64, B01D 46/10, B01D 46/521, B01D2265/021, B01D2265/026, B01D2271/027Filed as Donaldson Company, Inc.2025-07-23Gunther VAN DE POEL | pending |
| Filter CartridgeFiled as Donaldson Company, Inc.2025-07-21Gert Proost | D1130707 |
| ACID REACTIVE MATERIALS AND METHODS FOR MAKING AND USING THE SAMEFiled as DONALDSON COMPANY, INC.2025-07-21SHANE LAWSON | pending |
| FILTER CARTRIDGES; AIR CLEANER ASSEMBLIES; HOUSING; FEATURES; COMPONENTS; AND METHODSB01D 46/0005, B01D 46/2411, B01D 46/4227, B01D 46/525, B01D2271/027, B01D2279/60Filed as Donaldson Company, Inc.2025-07-17David J. BURTON | pending |
| FILTER CARTRIDGES; AIR CLEANER ASSEMBLIES; HOUSINGS; FEATURES; COMPONENTS; AND, METHODSB01D 45/16, B01D 46/0005, B01D 46/0013, B01D 46/62, B01D 50/20, B01D 46/2411, B01D 46/4227, B01D 46/525, B01D2258/06, B01D2271/022, B01D2271/027, B01D2275/00, B01D2279/60Filed as Donaldson Company, Inc.2025-07-14Hubert J. Rahn | pending |
| STRUCTURES HAVING RE-ENTRANT GEOMETRIES ON A POROUS MATERIAL SURFACEB01D 39/1692, B01D 69/12, B01D 69/02, B01D 71/52, B01D2239/0421, B01D2239/0428, B01D2239/1208, B01D2325/02, B01D2325/08, B01D2325/38Filed as Donaldson Company, Inc.2025-07-08Mikayla A. Yoder | pending |
| VIRAL TRANSDUCTION REAGENTS AND METHODS OF USEFiled as DONALDSON COMPANY, INC.2025-07-02NICOLE VOTAW | pending |
Filings are matched to the company by applicant name, so a subsidiary filing under its own name is only here if that name resolves to this company. The applicant is printed as filed, which makes a wrong match visible. A patent is not a product: most applications are never granted, and most grants are never built.
More on DCI
Company overviewEverything on DCI in one place, with the price.SEC filingsWhat DCI's 8-Ks say happened: results, departures, auditor changes.Insider tradingWhat DCI's own officers and directors buy and sell.Executive payWhat DCI awarded its chief executive, and what it became.Who owns itEvery manager reporting a position in DCI.Funds holding itWhich funds and ETFs hold DCI, and how big a bet.Federal contractsWhat federal agencies pay DCI.Workplace safetyWhat OSHA found at DCI's sites.