Growing community of inventors

Barrington Hills, IL, United States of America

Karl Singer

Average Co-Inventor Count = 1.23

ph-index = 8

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 = 190

Karl SingerRobert Allen Crimmins (3 patents)Karl SingerLawrence B LeStarge (3 patents)Karl SingerChad Seedorf (2 patents)Karl SingerMichael D Flasza (1 patent)Karl SingerKarl Singer (19 patents)Robert Allen CrimminsRobert Allen Crimmins (5 patents)Lawrence B LeStargeLawrence B LeStarge (4 patents)Chad SeedorfChad Seedorf (2 patents)Michael D FlaszaMichael D Flasza (16 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. D&k Custom Machine Design, Inc. (10 from 14 patents)

2. D&k Group, Inc. (5 from 5 patents)

3. Other (3 from 832,761 patents)

4. D & K International, Inc. (1 from 1 patent)

5. Wagner & Aubel, Ltd. (1 from 1 patent)


19 patents:

1. 8398792 - Simulated brush stroke system

2. 8272423 - Wall mounted laminator

3. 8057632 - Simulated brush stroke system

4. 7267857 - Mounting and laminating system

5. D544893 - Laminator

6. 7226692 - Battery lock

7. 6946217 - Battery lock

8. 5803447 - Method and apparatus for feeding sheets

9. 5773796 - Heated roller assembly

10. 5772202 - Method and apparatus for registering sheets

11. 5139600 - Double sided lamination machine

12. 5079981 - Cutter mechanism

13. 5071504 - Double sided laminating machine

14. 5019203 - Double sided laminating machine

15. 4743334 - Double sided laminating machine

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as of
12/16/2025
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