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Inventor

C. Bertil Stromberg

Inventor
Glens Falls, NY, US

Overview

47→
Patents
1990–2016
Patent span
Textiles
Primary field (CPC D)

Patents· 47 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

D21Cprimary
D21CProduction of cellulose by removing non-cellulose substances from cellulose-containing materials69%
B03BSeparating solid materials using liquids or using pneumatic tables or jigs5%
B04CApparatus using free vortex flow, e.g. cyclones5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
F16JPistons3%
B01FMixing, e.g. dissolving, emulsifying or dispersing2%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers2%
C07HSugars2%
C13KSaccharides obtained from natural sources or by hydrolysis of naturally occurring disaccharides, oligosaccharides or polysaccharides2%
D21BFibrous raw materials or their mechanical treatment2%
PatentTitleYear
9,260,818'Single vessel reactor system for hydrolysis and digestion of wood chips with chemical enhanced wash method'20168,734,610'Two vessel reactor system and method for hydrolysis and digestion of wood chips with chemical enhanced wash method'20148,262,856'Processes and systems for the bleaching of lignocellulosic pulps following cooking with soda and anthraquinone'20128,246,750'Apparatus and method for hydrolysis of cellulosic material in a multi-step process to produce C5 and C6 sugars using a single vessel'20128,192,549'Apparatus and method for hydrolysis of cellulosic material in a two-step process'20127,988,822'Treatment vessel for straw or other light bulky material'20117,658,818'Method for converting a digester for use as a gas phase and hydraulic phase continuous digester'20107,556,713'Method and system for feeding cellulose chips to a high pressure continuous cooking system'20097,455,749'Gas phase continuous digester having an inverted top separator with liquor injection'20087,309,401'Top separator for gas phase and hydraulic phase continuous digesters and method for converting digester'20077,105,076'Gas phase continuous digester having an inverted top separator with liquor injection'20066,841,042'Feeding comminuted fibrous material using high pressure screw and centrifugal pumps'20056,673,201'Top separator with intraseal for digester vessel in a pulp or fiber processing system'20046,589,391'Top separator with intraseal for digester vessel in a pulp or fiber processing system'20036,582,554'Continuous digester having a sectioned top separator with multiple liquor extraction ports'20036,576,084'Method of pretreating pulp with yield or strength-enhancing additive'20036,569,289'Cellulose slurry treating systems for adding AQ to a cellulose slurry in the substantial absence of alkali'20036,551,462'System for feeding comminuted fibrous material'20036,544,384'Pretreatment of chips before cooking'20036,506,283'Pretreatment of chips before cooking'20036,451,172'In-line drainer enhancements'20026,447,645'Feeding cellulose material to a treatment vessel'20026,436,233'Feeding cellulose material to a treatment vessel'20026,368,453'Chip feeding to a comminuted cellulosic fibrous material treatment vessel'20026,336,993'Metal removal from comminuted fibrous material during feeding'20026,332,542'Tramp material removal from pulp feed system'20016,325,890'Feeding comminuted fibrous material'20016,315,128'Tramp material removal from pulp feed systems'20016,277,240'Method for continuously pulping cellulosic fibrous material'20016,248,208'Pretreatment of chips before cooking'20016,176,971'Heat economy enhancements for the recovery and use of energy obtained from spent cooking liquors'20016,174,411'Continuous digester with inverted top separator'20016,153,300'Bleaching cellulose pulp having cleanliness which varies significantly over time using at least two different bleaching stages and bleaching chemicals'20006,132,556'Method of controlling pulp digester pressure via liquor extraction'20006,120,647'Simplified liquid removal system for a cellulose pulp digester'20006,106,668'Method for feeding comminuted fibrous material'20006,024,837'Low temperature gas phase continuous digester'20006,024,227'Tramp material removal from pulp feed systems'20005,985,096'Vertical pulping digester having substantially constant diameter'19995,958,181'Continuous cooking with a two-stage cool impregnation'19995,882,477'Continuous digester with a low temperature gas-phase'19995,813,758'Concentric ring fluidizing mixer'19985,795,438'Method and apparatus for feeding multiple digesters'19985,753,075'Method and system for feeding comminuted fibrous material'19985,401,361'Completely coutercurrent cook continuous digester'19954,944,842'Method for reducing contamination in pulp processing'19904,927,312'Chip gates with air lock'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2004Based in Glens Falls, NY, US· patent location history
1998–2000Patents assigned to AHLSTROM MACHINERY INC (10)· patent assignee history
1999–2003Based in Glen Falls, NY, US· patent location history
2000–2002Patents assigned to ANDRITZ AHLSTROM INC (9)· patent assignee history
2002–2016Patents assigned to ANDRITZ INC (24)· patent assignee history
2005–2009Based in Bolton Landing, NY, US· patent location history
2010–2016Based in Diamond Point, NY, US· patent location history
2012–2016Patents assigned to SHIN NAMHEE (5)· patent assignee history
2012–2016Patents assigned to STROMBERG C BERTIL (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ANDRITZ INC242002–2016
AHLSTROM MACHINERY INC101998–2000
ANDRITZ AHLSTROM INC92000–2002
SHIN NAMHEE52012–2016
STROMBERG C BERTILself52012–2016
Locations
LocationPatentsSpan
Glens Falls, New York, US331990–2004
Diamond Point, New York, US72010–2016
Bolton Landing, New York, US52005–2009
Glen Falls, New York, US21999–2003