Growing community of inventors

Cambridge, MA, United States of America

Peter R Kramer

Average Co-Inventor Count = 3.00

ph-index = 3

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 = 33

Peter R Kramer ↔ Frank B Manning (3 patents)Peter R Kramer ↔ T Pat Manning (3 patents)Peter R KramerPeter R Kramer (3 patents)Frank B ManningFrank B Manning (12 patents)T Pat ManningT Pat Manning (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Zoom Telephonics, Inc. (3 from 16 patents)


3 patents:

1. D271762 - Telephone switch-connector assembly

2. D271302 - Telephone switch-connector device

3. D271301 - Telephone switch-connector unit

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