Inventor
Walter F. Anderson
Inventor
Algonquin, IL, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication33%
H04WWireless communication networks30%
B05BSpraying apparatus15%
H04NPictorial communication, e.g. television7%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers4%
G02BOptical elements, systems or apparatus4%
G06TImage data processing or generation, in general4%
H04KSecret communication4%
PatentTitleYear
8,964,987'Method and apparatus for storing and distributing encryption keys'20158,817,989'Method and apparatus for storing and distributing encryption keys'20147,840,009'Method and apparatus for storing and distributing encryption keys'20107,707,419'Method and apparatus for storing and distributing encryption keys'20107,522,727'Method and apparatus for providing authentication in a communication system'20097,424,116'Method and apparatus for providing authentication in a communication system'20087,266,687'Method and apparatus for storing and distributing encryption keys'20077,123,719'Method and apparatus for providing authentication in a communication system'20065,148,482'Layered session data unit frame'19924,746,035'Liquid dispenser having a tamperproof overcap'1988D0293855'Magazine for collecting film for a printer'1988D0293390'Magazine for supplying film for a printer'19874,692,103'Precise output pump sprayer'1987D0290969'Remote controller for a printer'19874,595,958'Multiformat image recordation'19864,583,128'Continuous tone recording system incorporating feedback control circuit'19864,162,746'Liquid dispenser locking means'19794,051,983'Pump sprayer'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1988Based in West Covina, CA, US· patent location history
1986–1987Patents assigned to MINNESOTA MINING & MFG (3)· patent assignee history
1986–1988Based in Minneapolis, MN, US· patent location history
1986Based in St. Paul, MN, US· patent location history
1987–1988Patents assigned to MINOLTA CAMERA KK (3)· patent assignee history
1987–1988Patents assigned to CALMAR INC (2)· patent assignee history
1992–2010Patents assigned to MOTOROLA INC (7)· patent assignee history
1992Based in Chicago, IL, US· patent location history
2006–2015Based in Algonquin, IL, US· patent location history
2014–2015Patents assigned to ANDERSON WALTER F (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MOTOROLA INC | 7 | 1992–2010 |
| MINNESOTA MINING & MFG | 3 | 1986–1987 |
| MINOLTA CAMERA KK | 3 | 1987–1988 |
| ANDERSON WALTER Fself | 2 | 2014–2015 |
| CALMAR INC | 2 | 1987–1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Algonquin, Illinois, US | 8 | 2006–2015 |
| West Covina, California, US | 4 | 1977–1988 |
| Minneapolis, Minnesota, US | 4 | 1986–1988 |
| Chicago, Illinois, US | 1 | 1992 |
| St. Paul, Minnesota, US | 1 | 1986 |