Growing community of inventors

Milwaukee, WI, United States of America

Donald J Caldwell

Average Co-Inventor Count = 3.57

ph-index = 6

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 205

Donald J CaldwellJason Daniel Fuhr (4 patents)Donald J CaldwellJeffrey L Troxel (4 patents)Donald J CaldwellMichael J Koop (4 patents)Donald J CaldwellMark S Bakula (3 patents)Donald J CaldwellThomas P Becker (2 patents)Donald J CaldwellMatthew M Crass (2 patents)Donald J CaldwellSteven R Wente (2 patents)Donald J CaldwellMark J Hasenberg (2 patents)Donald J CaldwellRobert D Braun (2 patents)Donald J CaldwellSteven S Cascio (2 patents)Donald J CaldwellDaniel Mieczkowski (2 patents)Donald J CaldwellEdward T Gisske (2 patents)Donald J CaldwellTom S Severson (2 patents)Donald J CaldwellPeter Streuer (1 patent)Donald J CaldwellIngo Koch (1 patent)Donald J CaldwellJerome R Heiman (1 patent)Donald J CaldwellArmin Staffeldt (1 patent)Donald J CaldwellTimm R Herman (1 patent)Donald J CaldwellDoreen Lucht (1 patent)Donald J CaldwellDirk Bremer (1 patent)Donald J CaldwellAndrzej J Dlugolecki (1 patent)Donald J CaldwellGerald R Bakula (1 patent)Donald J CaldwellEric T Gustafson (1 patent)Donald J CaldwellAllan J Bliemeister (1 patent)Donald J CaldwellJerone Heiman (0 patent)Donald J CaldwellDonald J Caldwell (12 patents)Jason Daniel FuhrJason Daniel Fuhr (70 patents)Jeffrey L TroxelJeffrey L Troxel (24 patents)Michael J KoopMichael J Koop (4 patents)Mark S BakulaMark S Bakula (4 patents)Thomas P BeckerThomas P Becker (35 patents)Matthew M CrassMatthew M Crass (17 patents)Steven R WenteSteven R Wente (16 patents)Mark J HasenbergMark J Hasenberg (13 patents)Robert D BraunRobert D Braun (11 patents)Steven S CascioSteven S Cascio (10 patents)Daniel MieczkowskiDaniel Mieczkowski (6 patents)Edward T GisskeEdward T Gisske (4 patents)Tom S SeversonTom S Severson (2 patents)Peter StreuerPeter Streuer (31 patents)Ingo KochIngo Koch (25 patents)Jerome R HeimanJerome R Heiman (8 patents)Armin StaffeldtArmin Staffeldt (7 patents)Timm R HermanTimm R Herman (5 patents)Doreen LuchtDoreen Lucht (5 patents)Dirk BremerDirk Bremer (4 patents)Andrzej J DlugoleckiAndrzej J Dlugolecki (3 patents)Gerald R BakulaGerald R Bakula (3 patents)Eric T GustafsonEric T Gustafson (1 patent)Allan J BliemeisterAllan J Bliemeister (1 patent)Jerone HeimanJerone Heiman (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Snap-on Tools Corporation (5 from 157 patents)

2. Cps Technology Holdings LLC (4 from 229 patents)

3. Snap-on Technologies, Inc. (2 from 227 patents)

4. Clarios Germany Gmbh & Co. Kg (2 from 32 patents)

5. Johnson Controls Technology Company (1 from 1,941 patents)

6. Johnson Controls Autobatterie Gmbh & Co. Kgaa (1 from 30 patents)

7. Clarios Germany Gmbh & Co. Kgaa (1 from 8 patents)


12 patents:

1. 12469939 - Battery terminal

2. 11637352 - Battery terminal

3. 11605864 - Battery terminal

4. 10811667 - Battery terminal

5. 9508972 - Venting device for an electrochemical battery and battery with a venting device

6. 5898108 - Evaporative emission tester

7. 5763764 - Evaporative emission tester

8. 4994890 - Rectifier structure with individual links

9. D309246 - Screwdriver

10. D307236 - Screwdriver

11. 4845792 - Two-part adjustable approach ramp

12. 4777852 - Ratcheting screwdriver

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as of
12/7/2025
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