Growing community of inventors

Grand Rapids, MI, United States of America

Clifton J Ratza

Average Co-Inventor Count = 2.52

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 = 314

Clifton J RatzaTrent Allan Eekhoff (8 patents)Clifton J RatzaJeffrey S Wilcox (6 patents)Clifton J RatzaJason Ernest Begin (3 patents)Clifton J RatzaChristopher A Rossman (2 patents)Clifton J RatzaWarwick M Whitley, Ii (1 patent)Clifton J RatzaBruce Lynn Reniger (1 patent)Clifton J RatzaTerry L Lautzenheiser (1 patent)Clifton J RatzaBrent A Reichard (1 patent)Clifton J RatzaJames J Betcher (1 patent)Clifton J RatzaRyan Millhouse (1 patent)Clifton J RatzaJohn A Holtforth (1 patent)Clifton J RatzaRobert S Crow (1 patent)Clifton J RatzaRoger J Quinlan (1 patent)Clifton J RatzaClifton J Ratza (17 patents)Trent Allan EekhoffTrent Allan Eekhoff (16 patents)Jeffrey S WilcoxJeffrey S Wilcox (14 patents)Jason Ernest BeginJason Ernest Begin (14 patents)Christopher A RossmanChristopher A Rossman (15 patents)Warwick M Whitley, IiWarwick M Whitley, Ii (44 patents)Bruce Lynn RenigerBruce Lynn Reniger (13 patents)Terry L LautzenheiserTerry L Lautzenheiser (8 patents)Brent A ReichardBrent A Reichard (5 patents)James J BetcherJames J Betcher (3 patents)Ryan MillhouseRyan Millhouse (3 patents)John A HoltforthJohn A Holtforth (1 patent)Robert S CrowRobert S Crow (1 patent)Roger J QuinlanRoger J Quinlan (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Attwood Corporation (11 from 92 patents)

2. Steelcase Inc. (3 from 1,812 patents)

3. Milsco Manufacturing Company, a Unit of Jason Incorporated (2 from 17 patents)

4. Milsco Manufacturing Company (1 from 69 patents)


17 patents:

1. 7837273 - Seat suspension

2. 7523988 - Seat, suspension, bolster and shell

3. 7472959 - Folding seat

4. 6648419 - Shock absorbing seat

5. 6644751 - Shock absorbing seat

6. D465360 - Boat chair

7. 6474738 - Flip-up bolster chair

8. 6357830 - Shock absorbing seat

9. 6302367 - Fishing rod holder

10. D443020 - Fishing rod holder

11. 6116183 - Positively locking boat seat and method for making the same

12. 6089669 - Folding outdoor seat

13. D420816 - Boat seat

14. D412259 - Fishing seat

15. 5704704 - Marine pole light and base

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idiyas.com
as of
1/10/2026
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