Growing community of inventors

Leominster, MA, United States of America

Robert T Howitt

Average Co-Inventor Count = 1.57

ph-index = 15

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 = 726

Robert T HowittAngelo Tortola (9 patents)Robert T HowittEdward L Hames (3 patents)Robert T HowittPeter Kamenstein (3 patents)Robert T HowittDonald P Cummings (3 patents)Robert T HowittJoseph P Opramolla (3 patents)Robert T HowittDavid H Mallalieu (2 patents)Robert T HowittMelissa C Johnson (1 patent)Robert T HowittJoseph Opramolla (1 patent)Robert T HowittR Kurt Heinzmann (1 patent)Robert T HowittPaul D Cotnoir (1 patent)Robert T HowittLeon E Lavallee (1 patent)Robert T HowittAndre G Beaupre (1 patent)Robert T HowittRobert T Howitt (32 patents)Angelo TortolaAngelo Tortola (21 patents)Edward L HamesEdward L Hames (30 patents)Peter KamensteinPeter Kamenstein (6 patents)Donald P CummingsDonald P Cummings (5 patents)Joseph P OpramollaJoseph P Opramolla (3 patents)David H MallalieuDavid H Mallalieu (7 patents)Melissa C JohnsonMelissa C Johnson (5 patents)Joseph OpramollaJoseph Opramolla (2 patents)R Kurt HeinzmannR Kurt Heinzmann (1 patent)Paul D CotnoirPaul D Cotnoir (1 patent)Leon E LavalleeLeon E Lavallee (1 patent)Andre G BeaupreAndre G Beaupre (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Curtis Manufacturing Company, Inc. (13 from 68 patents)

2. Frem Corporation (8 from 8 patents)

3. Other (4 from 832,880 patents)

4. M. Kamenstein, Inc. (3 from 146 patents)

5. Hyde Manufacturing Company, Inc. (3 from 16 patents)

6. Hyde Mfg. Co. (1 from 2 patents)


32 patents:

1. 6966534 - Wire system for hanging picture frames

2. 6572067 - Adjustable picture hanging hook

3. 6527244 - Adjustable picture hanging hook

4. D426117 - Easel spice rack

5. D424383 - Easel spice rack

6. D388278 - Expandable trivet

7. 5325278 - Compact combined light and magnifier apparatus for a hand held computer

8. 5325280 - Light apparatus for illuminating a compact computer video screen

9. D346319 - Razor blade scraper

10. D344825 - Tool handle

11. D342063 - Combined antiglare monitor filter and holder

12. D341855 - Portable, battery operated light magnifier apparatus for computer video

13. 5217295 - Light apparatus and method for illuminating a compact computer video

14. D331397 - Anti-glare monitor filter holder

15. 5165779 - Compact combined light and magnifier apparatus for a hand-held computer

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1/2/2026
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