Inventor · disambiguated record
G. Douglas Hartzheim
Also filed as: HARTZHEIM G DOUGLAS
19 granted patents·1 pending application·430 citations·filing 1996–2022
95Inventor score
Files withINLAND CONCRETE PRODUCTS INC14AZTEC CONCRETE ACCESS INC2HARTZHEIM G DOUGLAS2AZTEC CONCRETE ACCESSORIES INC1
Top patents by PatentIndex Score
20 records- 0192US5729949ASlab on grade chairFiled 1996·Granted Mar 24, 1998·108 cites·25 claims
- 0290USD923775SHygienic face maskINLAND CONCRETE PRODUCTS INC·Filed 2020·Granted Jun 29, 2021·18 cites·1 claims
- 0390USD421709STower chairAZTEC CONCRETE ACCESS INC·Filed 1998·Granted Mar 21, 2000·50 cites·1 claims
- 0490USD394200SSlab on grade chairHARTZHEIM G DOUGLAS·Filed 1996·Granted May 12, 1998·48 cites·1 claims
- 0587US6089522AMethod and apparatus for supporting reinforcement membersAZTEC CONCRETE ACCESSORIES INC·Filed 1998·Granted Jul 18, 2000·90 cites·41 claims
- 0685USD948993SSupport chair for poured concrete reinforcement membersINLAND CONCRETE PRODUCTS INC·Filed 2021·Granted Apr 19, 2022·9 cites·1 claims
- 0785US10604933B1Slab bolster with improved connector systemINLAND CONCRETE PRODUCTS INC·Filed 2018·Granted Mar 31, 2020·6 cites·11 claims
- 0879USD889940SSupport chair for poured concrete reinforcement membersINLAND CONCRETE PRODUCTS INC·Filed 2019·Granted Jul 14, 2020·18 cites·1 claims
- 0978USD932285SSupport chair for poured concrete reinforcement membersINLAND CONCRETE PRODUCTS INC·Filed 2019·Granted Oct 5, 2021·15 cites·1 claims
- 1078USD428501SChairAZTEC CONCRETE ACCESS INC·Filed 1998·Granted Jul 18, 2000·24 cites·1 claims
- 1173USD393997SBolster barHARTZHEIM G DOUGLAS·Filed 1996·Granted May 5, 1998·19 cites·1 claims
- 1271USD891231SSlab bolster assemblyINLAND CONCRETE PRODUCTS INC·Filed 2018·Granted Jul 28, 2020·12 cites·1 claims
- 1370USD1033211SSupport chair for poured concrete reinforcement membersINLAND CONCRETE PRODUCTS INC·Filed 2022·Granted Jul 2, 2024·4 cites·1 claims
- 1466USD1019351SSupport chair for poured concrete reinforcement membersINLAND CONCRETE PRODUCTS INC·Filed 2022·Granted Mar 26, 2024·3 cites·1 claims
- 1565USD1027617SSupport chair for poured concrete reinforcement membersINLAND CONCRETE PRODUCTS INC·Filed 2022·Granted May 21, 2024·3 cites·1 claims
- 1659USD1031416SSupport chair for poured concrete reinforcement membersINLAND CONCRETE PRODUCTS INC·Filed 2022·Granted Jun 18, 2024·2 cites·1 claims
- 1758US2021331000A1Hygienic face maskINLAND CONCRETE PRODUCTS INC·Filed 2020·Application pending·0 cites
- 1851US11199006B2Slab bolster with improved connector systemINLAND CONCRETE PRODUCTS INC·Filed 2020·Granted Dec 14, 2021·0 cites·17 claims
- 1945USD939934SSpacer wheel for poured concrete reinforcement membersINLAND CONCRETE PRODUCTS INC·Filed 2020·Granted Jan 4, 2022·1 cites·1 claims
- 2028USD944072SSpacer wheel for poured concrete reinforcement membersINLAND CONCRETE PRODUCTS INC·Filed 2020·Granted Feb 22, 2022·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →