Inventor · disambiguated record
Joseph M. Caldwell
Also filed as: CALDWELL JOSEPH M
18 granted patents·3 pending applications·212 citations·filing 1977–2025
94Inventor score
Top patents by PatentIndex Score
21 records- 0194US9773351B2Parking meter systemMUNICIPAL PARKING SERVICES INC·Filed 2014·Granted Sep 26, 2017·24 cites·23 claims
- 0291US10121172B2Parking lot monitoring systemMUNICIPAL PARKING SERVICES INC·Filed 2014·Granted Nov 6, 2018·35 cites·20 claims
- 0391US2025391203A1Parking meter systemMUNICIPAL PARKING SERVICES INC·Filed 2025·Application pending·0 cites
- 0486US12249187B1Parking meter systemMUNICIPAL PARKING SERVICES INC·Filed 2024·Granted Mar 11, 2025·0 cites·20 claims
- 0582US4340025APulley for compound archery bowCALDWELL JOSEPH M·Filed 1980·Granted Jul 20, 1982·44 cites·24 claims
- 0681US10134201B2Parking meter systemMUNICIPAL PARKING SERVICES INC·Filed 2017·Granted Nov 20, 2018·2 cites·20 claims
- 0781US2025209857A1Parking meter systemMUNICIPAL PARKING SERVICES INC·Filed 2025·Application pending·0 cites
- 0880US12142085B2Parking meter systemMUNICIPAL PARKING SERVICES INC·Filed 2023·Granted Nov 12, 2024·0 cites·20 claims
- 0980US4350138AAxially-split archery bow limbCALDWELL JOSEPH M·Filed 1980·Granted Sep 21, 1982·34 cites·19 claims
- 1077US10424125B2Parking meter systemMUNICIPAL PARKING SERVICES INC·Filed 2018·Granted Sep 24, 2019·1 cites·20 claims
- 1177US4183345AArcher's bow with intermediately pivoted limbsCALDWELL JOSEPH M·Filed 1977·Granted Jan 15, 1980·28 cites·39 claims
- 1275US11688205B2Parking meter systemMUNICIPAL PARKING SERVICES INC·Filed 2022·Granted Jun 27, 2023·0 cites·20 claims
- 1375US4541401ACompound archery bowCALDWELL JOSEPH M·Filed 1982·Granted Sep 17, 1985·28 cites·25 claims
- 1470US11257302B2Parking meter systemMUNICIPAL PARKING SERVICES INC·Filed 2020·Granted Feb 22, 2022·0 cites·19 claims
- 1568US10885367B2Device, method and system for detecting parking in a no parking areaMUNICIPAL PARKING SERVICES INC·Filed 2018·Granted Jan 5, 2021·1 cites·20 claims
- 1668US10685501B2Parking meter systemMUNICIPAL PARKING SERVICES INC·Filed 2019·Granted Jun 16, 2020·0 cites·20 claims
- 1767US12473701B2Device, method and system for detecting parking in a no parking areaMUNICIPAL PARKING SERVICES INC·Filed 2020·Granted Nov 18, 2025·0 cites·10 claims
- 1858US4112909ACompound bowJENNINGS COMPOUND BOW INC·Filed 1977·Granted Sep 12, 1978·15 cites·26 claims
- 1953US11756359B2Health and sanitation monitoring methods and systems for controlled access to a premisesMUNICIPAL PARKING SERVICES INC·Filed 2021·Granted Sep 12, 2023·0 cites·20 claims
- 2053US2024112574A1Device, method and system for detecting parked vehiclesMUNICIPAL PARKING SERVICES INC·Filed 2023·Application pending·0 cites
- 2130USD261296SPulley for compound archery bowsCALDWELL JOSEPH M·Filed 1980·Granted Oct 13, 1981·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →