Growing community of inventors

Chicago, IL, United States of America

John D Hartman

Average Co-Inventor Count = 3.01

ph-index = 10

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 = 291

John D HartmanWalter B Herbst (6 patents)John D HartmanJames G Montagnino (2 patents)John D HartmanTerry Lee Lautzenheiser (2 patents)John D HartmanMark Dziersk (2 patents)John D HartmanTerrance N Taylor (2 patents)John D HartmanWilliam T Stoner, Jr (2 patents)John D HartmanSteve O Mork (2 patents)John D HartmanGregory K Evans (2 patents)John D HartmanMichael Lozano (2 patents)John D HartmanMikael R Backstrom (2 patents)John D HartmanKit Mok (2 patents)John D HartmanWilliam D Severa (1 patent)John D HartmanWalter B Herbst (1 patent)John D HartmanJames C Hand (1 patent)John D HartmanRonald R Rocchi (1 patent)John D HartmanElliott Hsu (1 patent)John D HartmanDonald G Loeffler (1 patent)John D HartmanKenneth W Carlson (1 patent)John D HartmanMarc H Pullman (1 patent)John D HartmanJames S Cleary (1 patent)John D HartmanJoey Gyomay Nakayama (1 patent)John D HartmanMark A Luzbetak (1 patent)John D HartmanDavid S Weisz (1 patent)John D HartmanConnie Kus (1 patent)John D HartmanKelly Ferguson (1 patent)John D HartmanLuigi Flori (1 patent)John D HartmanJenifer A Fahey (1 patent)John D HartmanJohn D Hartman (16 patents)Walter B HerbstWalter B Herbst (56 patents)James G MontagninoJames G Montagnino (90 patents)Terry Lee LautzenheiserTerry Lee Lautzenheiser (66 patents)Mark DzierskMark Dziersk (65 patents)Terrance N TaylorTerrance N Taylor (59 patents)William T Stoner, JrWilliam T Stoner, Jr (41 patents)Steve O MorkSteve O Mork (31 patents)Gregory K EvansGregory K Evans (24 patents)Michael LozanoMichael Lozano (23 patents)Mikael R BackstromMikael R Backstrom (14 patents)Kit MokKit Mok (2 patents)William D SeveraWilliam D Severa (64 patents)Walter B HerbstWalter B Herbst (38 patents)James C HandJames C Hand (37 patents)Ronald R RocchiRonald R Rocchi (20 patents)Elliott HsuElliott Hsu (20 patents)Donald G LoefflerDonald G Loeffler (13 patents)Kenneth W CarlsonKenneth W Carlson (9 patents)Marc H PullmanMarc H Pullman (8 patents)James S ClearyJames S Cleary (7 patents)Joey Gyomay NakayamaJoey Gyomay Nakayama (5 patents)Mark A LuzbetakMark A Luzbetak (4 patents)David S WeiszDavid S Weisz (1 patent)Connie KusConnie Kus (1 patent)Kelly FergusonKelly Ferguson (1 patent)Luigi FloriLuigi Flori (1 patent)Jenifer A FaheyJenifer A Fahey (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Motorola Corporation (4 from 20,290 patents)

2. J.f. Meskill Enterprises, L.l.c. (4 from 11 patents)

3. The Gillette Company (2 from 2,663 patents)

4. Access Business Group International LLC (2 from 518 patents)

5. Tanita Corporation (2 from 345 patents)

6. Wilson Sporting Goods Co. (1 from 456 patents)

7. Cabot Safety Corporation (1 from 27 patents)


16 patents:

1. D747789 - Air treatment system

2. D739512 - Air treatment system

3. D553235 - Ceiling exhaust fan

4. D553236 - Ceiling exhaust fan

5. D553237 - Ceiling exhaust fan

6. D553234 - Ceiling exhaust fan

7. D547217 - Scale

8. D546220 - Scale

9. D520581 - Sports racquet

10. D463784 - Communication device

11. D443603 - Headset

12. D436948 - Accessory adapter for radio communication device

13. D432528 - Speakerphone accessory

14. D367004 - Fluid dispenser

15. D358167 - Writing instrument

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as of
12/26/2025
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