Inventor
Warren E. Guthrie
Inventor
West Olive, MI, US
Overview
Patents· 52 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G07Cprimary
G07CTime or attendance registers11%
G01SRadio direction-finding7%
G06KGraphical data reading6%
H01QAntennas, i.e. radio aerials6%
G06VImage or video recognition or understanding5%
H04BTransmission5%
H04NPictorial communication, e.g. television5%
G06TImage data processing or generation, in general4%
H04WWireless communication networks4%
G06FElectric digital data processing3%
PatentTitleYear
11,127,234Passive entry/passive start communication systems with selected antennas having multiple polarized axes202111,094,151System and method for communicating with a vehicle202111,037,386Passive entry/passive start systems detecting range extender type relay station attacks202110,991,182Multi-axis polarized RF antenna assemblies for passive entry/passive start systems202110,862,198Wideband, low profile, small area, circular polarized uhf antenna202010,548,256Precision agricultural-device control system and wireless agricultural-device communication protocol202010,552,670Positional locating system and method202010,410,447System and method for communicating with a vehicle201910,356,550Method and system for establishing microlocation zones201910,222,347Method and device for measuring ion concentration201910,137,459Ion generator device201810,039,969Performance metrics20189,767,351'Positional locating system and method'20179,666,005'System and method for communicating with a vehicle'20179,195,885'Positional locating system and method'20158,988,240'Performance metrics'20158,977,192'Fast data'20158,853,965'Luminary control systems'20148,786,456'Positional locating system and method'20148,742,625'Multiphase inductive power supply system'20148,330,611'Positional locating system and method'20128,274,928'Wireless mesh network'20127,973,635'Printed circuit board coil'20117,756,556'RF antenna integrated into a control device installed into a wall switch box'20107,518,564'Slot antenna'20097,269,416'Universal vehicle based garage door opener control system and method'20077,116,242'Programmable transmitter and receiver including digital radio frequency memory'20067,030,736'Radio frequency identification (RFID) pin detection system'20066,424,213'Loss reduction using multiple amplifiers identically divided'20026,420,873'MRI noise detector and suppressor'20026,359,509'Balanced error correction amplifier and method of removing distortion from an amplified signal'20026,348,838'Optimal power combining for balanced error correction amplifier'20026,112,052'Remote controlled noise jamming device'20006,058,374'Inventorying method and system for monitoring items using tags'20006,049,278'Monitor tag with patch antenna'20006,035,260'Wrist strap integrity check circuitry'20005,959,584'Vehicle communications system'19995,910,956'Random time interval generator'19995,872,455'Wrist strap test mode circuitry'19995,844,482'Tagging system using motion detector'19985,844,942'Pulse position modulation communications protocol'19985,838,195'Reduction of second order harmonic distortion in high power TWT amplifiers'19985,801,643'Remote utility meter reading system'19985,757,312'Method and apparatus for hard-wired adaptive cancellation'19985,748,047'Microwave frequency generator and method of generating a desired microwave frequency signal'19985,745,037'Personnel monitoring tag'19985,729,235'Coherent GPS translator with spread spectrum pilot tone'19985,565,858'Electronic inventory system for stacked containers'19965,512,902'Stock locator system using GPS translator'19965,451,910'Frequency synthesizer with comb spectrum mixer and fractional comb frequency offset'19955,343,168'Harmonic frequency synthesizer with adjustable frequency offset'19945,193,210'Low power RF receiver'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2000Based in Glen Ellyn, IL, US· patent location history
1994–2000Patents assigned to NORTHROP GRUMMAN CORP (17)· patent assignee history
1998–2000Based in Wheaton, IL, US· patent location history
2000Based in GlenEllyn, IL, US· patent location history
2002Patents assigned to NETCOM INC (4)· patent assignee history
2002–2021Based in West Olive, MI, US· patent location history
2012–2020Patents assigned to AVIDASPORTS LLC (8)· patent assignee history
2012–2015Patents assigned to BURTON BRUCE J (3)· patent assignee history
2019–2021Patents assigned to DENSO CORP (6)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NORTHROP GRUMMAN CORP | 17 | 1994–2000 |
| AVIDASPORTS LLC | 8 | 2012–2020 |
| DENSO CORP | 6 | 2019–2021 |
| NETCOM INC | 4 | 2002 |
| BURTON BRUCE J | 3 | 2012–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| West Olive, MI, US | 32 | 2002–2021 |
| Glen Ellyn, Illinois, US | 10 | 1993–2000 |
| Wheaton, Illinois, US | 9 | 1998–2000 |
| GlenEllyn, Illinois, US | 1 | 2000 |