Douglas A. Larson

Person

Ann Arbor, MI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Self-adjusting bushing bearing with shaft seal
- Patent number 9,995,342
- Issue date Jun 12, 2018
- CADVENTURES, Inc.
- Thomas J. Danowski
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Self-adjusting bushing bearing having a springy element
- Patent number 9,790,988
- Issue date Oct 17, 2017
- CADventures, Inc.
- Douglas A. Larson
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Filter system
- Patent number 7,364,663
- Issue date Apr 29, 2008
- Heritage-Crystal Clean, L.L.C.
- Douglas Alan Larson
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Portable filter system
- Patent number 7,300,575
- Issue date Nov 27, 2007
- Heritage-Crystal Clean, L.L.C.
- Doug Larson
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Filter system
- Patent number 6,818,126
- Issue date Nov 16, 2004
- Heritage-Crystal Clean, L.L.C.
- Douglas A. Larson
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Metered dose inhalation unit with slide means
- Patent number 5,598,836
- Issue date Feb 4, 1997
- Healthscan Products, Inc.
- Douglas A. Larson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Composite liquid filter
- Patent number 5,582,743
- Issue date Dec 10, 1996
- Safety-Kleen Corp.
- Douglas A. Larson
- B08 - CLEANING
Information Patent Grant
Composite liquid filter
- Patent number 5,478,465
- Issue date Dec 26, 1995
- Safety-Kleen Corp.
- Douglas A. Larson
- B08 - CLEANING
Information Patent Grant
Safety cover assembly for open container
- Patent number 5,350,079
- Issue date Sep 27, 1994
- Safety-Kleen Corp.
- Douglas A. Larson
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
On-site, controlled waste concentrator and solvent regenerator appa...
- Patent number 5,334,291
- Issue date Aug 2, 1994
- Safety-Kleen Corp.
- Gilbert Gavlin
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Medication inhaler mixer
- Patent number 5,297,543
- Issue date Mar 29, 1994
- Healthscan Products, Inc.
- Douglas A. Larson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Detachable cover and drum liner for storage and transport of contro...
- Patent number 5,255,492
- Issue date Oct 26, 1993
- Safety-Kleen Corporation
- Douglas A. Larson
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Detachable cover and drum liner for storage and transport of contro...
- Patent number 5,154,308
- Issue date Oct 13, 1992
- Safety-Kleen Corporation
- Douglas A. Larson
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Metered dose inhalation unit with slide means
- Patent number 5,040,527
- Issue date Aug 20, 1991
- Healthscan Products Inc.
- Douglas A. Larson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Inspiratory muscle exerciser or similar article
- Patent number D315583
- Issue date Mar 19, 1991
- Healthscan, Inc.
- Douglas A. Larson
- D21 - Games, toys, and sports goods
Information Patent Grant
Inspirator muscle trainer
- Patent number 4,854,574
- Issue date Aug 8, 1989
- 501 Healthscan, Inc.
- Douglas A. Larson
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Solvent vapor collection and evacuation system
- Patent number 4,823,820
- Issue date Apr 25, 1989
- Safety-Kleen Corp.
- Douglas A. Larson
- B08 - CLEANING

Patents Applicationslast 30 patents

Information Patent Application
SELF-ADJUSTING BUSHING BEARING WITH MAGNETIC LEVITATION
- Publication number 20210231170
- Publication date Jul 29, 2021
- CADventures, Inc.
- Douglas A. Larson
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
SELF-ADJUSTING BUSHING BEARING WITH SHAFT SEAL
- Publication number 20170146065
- Publication date May 25, 2017
- CADventures, Inc.
- Thomas J. Danowski
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Portable filter system
- Publication number 20050279717
- Publication date Dec 22, 2005
- Doug Larson
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Filter system
- Publication number 20050082238
- Publication date Apr 21, 2005
- Heritage-Crystal Clean, L.L.C
- Douglas A. Larson
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Filter system
- Publication number 20030178377
- Publication date Sep 25, 2003
- Douglas Alan Larson
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Douglas A. Larson

Person

Patents Grantslast 30 patents

Self-adjusting bushing bearing with shaft seal

Self-adjusting bushing bearing having a springy element

Filter system

Portable filter system

Filter system

Metered dose inhalation unit with slide means

Composite liquid filter

Composite liquid filter

Safety cover assembly for open container

On-site, controlled waste concentrator and solvent regenerator appa...

Medication inhaler mixer

Detachable cover and drum liner for storage and transport of contro...

Detachable cover and drum liner for storage and transport of contro...

Metered dose inhalation unit with slide means

Inspiratory muscle exerciser or similar article

Inspirator muscle trainer

Solvent vapor collection and evacuation system

Patents Applicationslast 30 patents

SELF-ADJUSTING BUSHING BEARING WITH MAGNETIC LEVITATION

SELF-ADJUSTING BUSHING BEARING WITH SHAFT SEAL

Portable filter system

Filter system

Filter system