Inventor
John R. Spriggs
Inventor
Minneapolis, MN, US
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A47Lprimary
A47LDomestic washing or cleaning21%
D06FLaundering, drying, ironing, pressing or folding textile articles21%
Y10TTechnical subjects covered by former us classification21%
B01FMixing, e.g. dissolving, emulsifying or dispersing11%
B67DDispensing, delivering or transferring liquids, not otherwise provided for11%
G01NInvestigating or analysing materials by determining their chemical or physical properties11%
B05BSpraying apparatus5%
PatentTitleYear
6,143,257'Dispenser'20005,975,352'Dispenser'19995,873,268'Dispenser'19995,799,831'Dual aspirator'19985,782,109'Dispenser'19985,770,039'Method and apparatus for measuring and controlling active oxygen concentration in a bleach environment'1998D0376230'Solid detergent dispenser'19965,344,074'Dispensing apparatus having a removable variable proportioning and metering device'19945,259,557'Solution proportioner and dispensing system'1993D0337370'Spray gun for dispensing diluted chemical concentrates'1993D0335566'Cart for dispenser assembly'1993D0334102'Rack for supporting janitorial cleaning solution concentrate containers and spray gun applicator'19934,875,363'Apparatus and method for testing flow characteristics of molding compounds'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989Patents assigned to STERLING ENG PRODUCTS INC (1)· patent assignee history
1989Based in Fremont, OH, US· patent location history
1993–2000Patents assigned to ECOLAB INC (12)· patent assignee history
1993–2000Based in Minneapolis, MN, US· patent location history
1996Based in Eagan, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ECOLAB INC | 12 | 1993–2000 |
| STERLING ENG PRODUCTS INC | 1 | 1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Minneapolis, Minnesota, US | 11 | 1993–2000 |
| Eagan, Minnesota, US | 1 | 1996 |
| Fremont, OH, US | 1 | 1989 |