Inventor

Jerry R. Johanson

Inventor

San Luis Obispo, CA, US

Overview

37→

Patents

1981–2014

Patent span

Performing operations

Primary field (CPC B)

Patents· 37 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 materials28%

B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors15%

G01NInvestigating or analysing materials by determining their chemical or physical properties15%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers13%

B01FMixing, e.g. dissolving, emulsifying or dispersing6%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%

G01FMeasuring volume, volume flow, mass flow or liquid level4%

B30BPresses in general2%

B65BMachines, apparatus or devices for, or methods of, packaging articles or materials2%

B67CCleaning, filling with liquids or semiliquids, or emptying, of bottles, jars, cans, casks, barrels, or similar containers, not otherwise provided for2%

PatentTitleYear

8,821,691'Reactor vessel having single convergence sidewall plates'2014 7,451,666'Apparatus and test procedure for measuring the cohesive, adhesive, and frictional properties of bulk granular solids'2008 RE039208'Method of treating material in a continuous digester'2006 6,845,890'Bulk granular solids gravity flow curing vessel'2005 6,494,612'Racetrack-shaped dynamic gravity flow blender'2002 6,451,163'Method of handling comminuted cellulosic fibrous slurry in a cylindrical vessel'2002 6,432,264'Method of making a vessel assembly for handling comminuted cellulosic fibrous material'2002 6,375,796'Method of treating material in a continuous digester'2002 6,336,573'Hopper, or bin, screw feeder construction controlling discharge velocity profile'2002 6,280,575'Frusto-conical outlet for a cellulose material treatment vessel'2001 6,199,299'Feeding of comminuted fibrous material to a pulping process'2001 6,186,373'Hopper, or bin, screw feeder construction controlling discharge velocity profile'2001 6,129,816'Tapered screen assembly for a cellulose pulp digester'2000 6,086,307'Hoppers with directionally applied relative motion to promote solids flow'2000 6,055,781'Archbreaking hopper for bulk solids'2000 5,992,689'Variable flow rate hopper to reduce feed pulsation to a downstream process'1999 5,985,096'Vertical pulping digester having substantially constant diameter'1999 H0001681'Discharge from pulping vessels without the aid of mechanical agitation'1997 5,628,873'Chip bin assembly including a hollow transition with one dimensional convergence and side relief'1997 5,622,250'Interface for discharging hopper contents onto feeder'1997 5,617,975'Chip feed system'1997 5,500,083'Method of feeding cellulosic material to a digester using a chip bin with one dimensional convergence and side relief'1996 5,454,490'Conical insets for chip bin'1995 5,361,945'Combination hopper'1994 5,289,728'Flow-no-flow tester'1994 5,117,699'Flow-no-flow tester'1992 5,106,591'Salt handling apparatus for a hypochlorous acid reactor'1992 5,052,874'Compacting screw feeder'1991 4,986,456'Flow rate controller and feeder'1991 4,958,741'Modular mass-flow bin'1990 4,795,266'Solids blender with cylindrical inserts'1989 4,757,757'Compaction of granular solids with a combination of shear and direct compression'1988 4,719,809'Apparatus and test method for determining flow or no flow conditions of bulk solids'1988 4,715,212'Bulk solids property tester'1987 4,646,910'Generalized high speed belt to belt transfer chute'1987 4,446,717'Abrasive wear tester'1984 4,286,883'Blending apparatus for bulk solids'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1987Patents assigned to JENIKE & JOHANSON INC (4)· patent assignee history

1981–1984Based in Chelmsford, MA, US· patent location history

1987–2014Based in San Luis Obispo, CA, US· patent location history

1988–2008Patents assigned to JOHANSON J R INC (11)· patent assignee history

1997–1999Patents assigned to AHLSTROM MACHINERY INC (4)· patent assignee history

2000–2002Patents assigned to ANDRITZ AHLSTROM INC (5)· patent assignee history

2002–2014Patents assigned to ANDRITZ INC (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
JOHANSON J R INC	11	1988–2008
ANDRITZ AHLSTROM INC	5	2000–2002
ANDRITZ INC	5	2002–2014
AHLSTROM MACHINERY INC	4	1997–1999
JENIKE & JOHANSON INC	4	1981–1987

Locations

Location	Patents	Span
San Luis Obispo, California, US	35	1987–2014
Chelmsford, Massachusetts, US	2	1981–1984