Growing community of inventors

Cincinnati, OH, United States of America

Robert O Ruff

Average Co-Inventor Count = 1.16

ph-index = 9

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 = 172

Robert O RuffDonald L King (3 patents)Robert O RuffErnest D Schwarz, Ii (1 patent)Robert O RuffRobert O Ruff (12 patents)Donald L KingDonald L King (4 patents)Ernest D Schwarz, IiErnest D Schwarz, Ii (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ingersoll-Rand Company (6 from 1,201 patents)

2. American Standard Inc. (4 from 1,121 patents)

3. Masco Industries, Inc. (1 from 31 patents)

4. Ingersoll-Rand (1 from 3 patents)


12 patents:

1. 6405506 - Door frame for metal buildings

2. 6148572 - Wall construction

3. 6079181 - Wall construction

4. 5704171 - Door frame installing fixture

5. 5669198 - Anchor for metal door frame

6. 5619823 - Pre-finished metal door frame

7. 5581953 - Metal frame assembly

8. 5323579 - Door window glass and frame assembly

9. 4547930 - Hinge preparation assembly for a steel door

10. D273937 - Strike plate or similar article

11. 4255902 - Weather sealing assembly for doors

12. 4213317 - Blank filler plate for lock edge cut-out

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/12/2026
Loading…