BRIAN L. DOUGLASS

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Willman, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Asymmetric leaching chamber for onsite wastewater management system
- Patent number 11,795,679
- Issue date Oct 24, 2023
- Prinsco, Inc.
- Brian L. Douglass
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Retracting extruder barrel with cooling features
- Patent number 10,391,695
- Issue date Aug 27, 2019
- Brian L. Douglass
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Fused filament fabrication system and method
- Patent number 9,469,071
- Issue date Oct 18, 2016
- Douglass Innovations, Inc.
- Brian L. Douglass
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
SEPTIC CHAMBER SNAP LOCKING COUPLING JOINT
- Publication number 20230257986
- Publication date Aug 17, 2023
- PRINSCO, INC.
- Brian L. Douglass
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
ASYMMETRIC LEACHING CHAMBER FOR ONSITE WASTEWATER MANAGEMENT SYSTEM
- Publication number 20230012614
- Publication date Jan 19, 2023
- PRINSCO, INC.
- Brian L. Douglass
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
AEROPONIC BASKET SYSTEM AND METHOD OF USE
- Publication number 20210015057
- Publication date Jan 21, 2021
- DOUGLASS INNOVATIONS, INC.
- Brian L. Douglass
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
RETRACTING EXTRUDER BARREL WITH COOLING FEATURES
- Publication number 20150290861
- Publication date Oct 15, 2015
- Brian L. Douglass
- B33 - ADDITIVE MANUFACTURING TECHNOLOGY
Information Patent Application
FUSED FILAMENT FABRICATION SYSTEM AND METHOD
- Publication number 20150037446
- Publication date Feb 5, 2015
- BRIAN L. DOUGLASS
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL