Inventor
CALDWELL JOSEPH M
US18 patents
⚠️ This page may combine multiple inventors who share the name “CALDWELL JOSEPH M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MUNICIPAL PARKING SERVICES INC
12 patentsUS9773351B2Sep 26, 2017
Parking meter system
MUNICIPAL PARKING SERVICES INC24 citations93
US10121172B2Nov 6, 2018
Parking lot monitoring system
MUNICIPAL PARKING SERVICES INC35 citations90
US10424125B2Sep 24, 2019
Parking meter system
MUNICIPAL PARKING SERVICES INC1 citations71
US10134201B2Nov 20, 2018
Parking meter system
MUNICIPAL PARKING SERVICES INC2 citations71
US12249187B1Mar 11, 2025
Parking meter system
MUNICIPAL PARKING SERVICES INC0 citations61
US12142085B2Nov 12, 2024
Parking meter system
MUNICIPAL PARKING SERVICES INC0 citations61
US11688205B2Jun 27, 2023
Parking meter system
MUNICIPAL PARKING SERVICES INC0 citations61
US11257302B2Feb 22, 2022
Parking meter system
MUNICIPAL PARKING SERVICES INC0 citations61
US12473701B2Nov 18, 2025
Device, method and system for detecting parking in a no parking area
MUNICIPAL PARKING SERVICES INC0 citations59
US10885367B2Jan 5, 2021
Device, method and system for detecting parking in a no parking area
MUNICIPAL PARKING SERVICES INC1 citations59
US10685501B2Jun 16, 2020
Parking meter system
MUNICIPAL PARKING SERVICES INC0 citations51
US11756359B2Sep 12, 2023
Health and sanitation monitoring methods and systems for controlled access to a premises
MUNICIPAL PARKING SERVICES INC0 citations46
CALDWELL JOSEPH M
5 patentsUS4541401ASep 17, 1985
Compound archery bow
CALDWELL JOSEPH M28 citations91
US4350138ASep 21, 1982
Axially-split archery bow limb
CALDWELL JOSEPH M34 citations91
US4340025AJul 20, 1982
Pulley for compound archery bow
CALDWELL JOSEPH M44 citations91
US4183345AJan 15, 1980
Archer's bow with intermediately pivoted limbs
CALDWELL JOSEPH M28 citations81
USD261296SOct 13, 1981
Pulley for compound archery bows
CALDWELL JOSEPH M0 citations51