Growing community of inventors

Canton, OH, United States of America

Douglas C Barker

Average Co-Inventor Count = 3.69

ph-index = 11

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 = 352

Douglas C BarkerDavid W Moine (10 patents)Douglas C BarkerRonald J Stephens (6 patents)Douglas C BarkerWilliam G Alford (6 patents)Douglas C BarkerRichard S Parr (5 patents)Douglas C BarkerMatthew J Archer (4 patents)Douglas C BarkerDarwin S Crouser (4 patents)Douglas C BarkerJames A Prescott (3 patents)Douglas C BarkerEdgar A Maurer (3 patents)Douglas C BarkerLynn A Frederick (3 patents)Douglas C BarkerLarry Keith Hooks, Jr (3 patents)Douglas C BarkerJohn Bartholomew (3 patents)Douglas C BarkerGeorge Brand (3 patents)Douglas C BarkerDaniel R Miller (3 patents)Douglas C BarkerKrista I A Smith (3 patents)Douglas C BarkerSteven E Huckaby (3 patents)Douglas C BarkerRussell Kittel (3 patents)Douglas C BarkerGanesh B Pavalarajan (3 patents)Douglas C BarkerAnna Diorio-Blum (3 patents)Douglas C BarkerErik D Lesco (2 patents)Douglas C BarkerChristopher J Fawcett (1 patent)Douglas C BarkerRichard A Wareham (1 patent)Douglas C BarkerRichard E Corney (1 patent)Douglas C BarkerJeffrey S Louis (1 patent)Douglas C BarkerJohn D Essex (1 patent)Douglas C BarkerDarwin T McKnight (1 patent)Douglas C BarkerVincent L Weber (1 patent)Douglas C BarkerCharles A Lang (1 patent)Douglas C BarkerKurt D Harsh (1 patent)Douglas C BarkerKenneth L Symensma (1 patent)Douglas C BarkerDavid B Rennecker (1 patent)Douglas C BarkerDouglas E Gerber (1 patent)Douglas C BarkerDavid L O'Neal (1 patent)Douglas C BarkerRyan S Steiner (1 patent)Douglas C BarkerGlenn Matusz (1 patent)Douglas C BarkerDouglass A King (1 patent)Douglas C BarkerJohn A Leonatti (1 patent)Douglas C BarkerTimothy B Hisrich (1 patent)Douglas C BarkerA Ronald Keebler (1 patent)Douglas C BarkerDavid J Boles (1 patent)Douglas C BarkerDavid P Parks (1 patent)Douglas C BarkerJoseph W Clifford (1 patent)Douglas C BarkerTimothy E Crites (1 patent)Douglas C BarkerRaymond L Lawer (1 patent)Douglas C BarkerAnson W Telford (1 patent)Douglas C BarkerParesh M Vasandani (1 patent)Douglas C BarkerGregg A McAllise (1 patent)Douglas C BarkerKrista IA Smith (0 patent)Douglas C BarkerDouglas C Barker (28 patents)David W MoineDavid W Moine (48 patents)Ronald J StephensRonald J Stephens (36 patents)William G AlfordWilliam G Alford (32 patents)Richard S ParrRichard S Parr (85 patents)Matthew J ArcherMatthew J Archer (19 patents)Darwin S CrouserDarwin S Crouser (17 patents)James A PrescottJames A Prescott (27 patents)Edgar A MaurerEdgar A Maurer (26 patents)Lynn A FrederickLynn A Frederick (24 patents)Larry Keith Hooks, JrLarry Keith Hooks, Jr (14 patents)John BartholomewJohn Bartholomew (13 patents)George BrandGeorge Brand (10 patents)Daniel R MillerDaniel R Miller (9 patents)Krista I A SmithKrista I A Smith (4 patents)Steven E HuckabySteven E Huckaby (4 patents)Russell KittelRussell Kittel (4 patents)Ganesh B PavalarajanGanesh B Pavalarajan (3 patents)Anna Diorio-BlumAnna Diorio-Blum (3 patents)Erik D LescoErik D Lesco (9 patents)Christopher J FawcettChristopher J Fawcett (143 patents)Richard A WarehamRichard A Wareham (59 patents)Richard E CorneyRichard E Corney (49 patents)Jeffrey S LouisJeffrey S Louis (45 patents)John D EssexJohn D Essex (39 patents)Darwin T McKnightDarwin T McKnight (34 patents)Vincent L WeberVincent L Weber (20 patents)Charles A LangCharles A Lang (15 patents)Kurt D HarshKurt D Harsh (14 patents)Kenneth L SymensmaKenneth L Symensma (13 patents)David B RenneckerDavid B Rennecker (11 patents)Douglas E GerberDouglas E Gerber (10 patents)David L O'NealDavid L O'Neal (10 patents)Ryan S SteinerRyan S Steiner (8 patents)Glenn MatuszGlenn Matusz (8 patents)Douglass A KingDouglass A King (8 patents)John A LeonattiJohn A Leonatti (6 patents)Timothy B HisrichTimothy B Hisrich (5 patents)A Ronald KeeblerA Ronald Keebler (4 patents)David J BolesDavid J Boles (4 patents)David P ParksDavid P Parks (3 patents)Joseph W CliffordJoseph W Clifford (2 patents)Timothy E CritesTimothy E Crites (1 patent)Raymond L LawerRaymond L Lawer (1 patent)Anson W TelfordAnson W Telford (1 patent)Paresh M VasandaniParesh M Vasandani (1 patent)Gregg A McAlliseGregg A McAllise (1 patent)Krista IA SmithKrista IA Smith (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. The Hoover Comapny (22 from 429 patents)

2. Zimmer Gmbh (4 from 1,164 patents)

3. Zimmer Surgical, Inc. (1 from 22 patents)

4. Healthy Gain Investments Limited (1 from 6 patents)

5. Zimmer Orthopaedic Surgical Products, Inc. (7 patents)


28 patents:

1. 12171533 - Automatic cuff identification system and method

2. 11793250 - Surgical helmet

3. 11284655 - Surgical helmet

4. 10687568 - Surgical helmet

5. 8002779 - Dermatome blade assembly

6. 7367083 - Suction nozzle assembly for a cleaning apparatus

7. D545012 - Base for an upright extractor

8. D534699 - Portion of a portable cleaning machine

9. 7039985 - Removable hose and tool caddy

10. D517260 - Portable cleaning machine

11. D513649 - Tank for a portable cleaning machine

12. D513648 - Tank for a portable cleaning machine

13. D505527 - Portion of a hood for a dry carpet cleaning dry powder spreader

14. D498888 - Carpet cleaning dry powder spreader

15. D488893 - Vacuum cleaner

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as of
12/6/2025
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