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Carl Raymond Douglass III
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Spicer, MN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Webless corrugated dual wall foundation drain and related method
Patent number
10,428,978
Issue date
Oct 1, 2019
Prinsco, Inc.
Carl Raymond Douglass
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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
Method of rotational molding rib profile for large diameter pipe fi...
Patent number
9,815,229
Issue date
Nov 14, 2017
Prinsco, Inc.
Carl Raymond Douglass
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
System and method of inspecting inner smooth wall of corrugated dua...
Patent number
9,764,506
Issue date
Sep 19, 2017
Prinsco, Inc.
Carl Raymond Douglass
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Coilable dual wall corrugated pipe and related method
Patent number
9,662,826
Issue date
May 30, 2017
Prinsco, Inc.
Carl Raymond 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
Information
Patent Grant
Heat-fusible gasket and method of manufacture
Patent number
8,991,830
Issue date
Mar 31, 2015
Prinsco, Inc.
Carl R. Douglass
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Rib construction for large diameter pipe fittings
Patent number
8,967,674
Issue date
Mar 3, 2015
Prinsco, Inc.
Carl R. Douglass
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
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
WEBLESS CORRUGATED DUAL WALL FOUNDATION DRAIN AND RELATED METHOD
Publication number
20170219132
Publication date
Aug 3, 2017
PRINSCO, INC.
Carl Raymond Douglass
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
System And Method Of Inspecting Inner Smooth Wall Of Corrugated Dua...
Publication number
20160221244
Publication date
Aug 4, 2016
Carl Raymond Douglass
G01 - MEASURING TESTING
Information
Patent Application
COILABLE DUAL WALL CORRUGATED PIPE AND RELATED METHOD
Publication number
20160018027
Publication date
Jan 21, 2016
Prinso, Inc.
Carl Raymond Douglass
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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
METHOD OF ROTATIONAL MOLDING RIB PROFILE FOR LARGE DIAMETER PIPE FI...
Publication number
20150151463
Publication date
Jun 4, 2015
PRINSCO, INC.
Carl Raymond Douglass
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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