Growing community of inventors

San Mateo, CA, United States of America

Qingcai Guan

Average Co-Inventor Count = 4.00

ph-index = 1

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 = 36

Qingcai Guan ↔ Jeffrey Weitzman (4 patents)Qingcai Guan ↔ Ravi Kant Keswani (4 patents)Qingcai Guan ↔ Manicka Muthugopalakrishna (2 patents)Qingcai Guan ↔ Manickababu Muthu (1 patent)Qingcai Guan ↔ Manicka Muthugopalakrishnan (1 patent)Qingcai GuanQingcai Guan (4 patents)Jeffrey WeitzmanJeffrey Weitzman (7 patents)Ravi Kant KeswaniRavi Kant Keswani (6 patents)Manicka MuthugopalakrishnaManicka Muthugopalakrishna (2 patents)Manickababu MuthuManickababu Muthu (2 patents)Manicka MuthugopalakrishnanManicka Muthugopalakrishnan (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Quotient Technology Inc. (2 from 37 patents)

2. Coupons.com Incorporated (2 from 19 patents)


4 patents:

1. 9576298 - Coupon copy protection

2. 9424585 - Coupon copy protection

3. 8559667 - Coupon copy protection

4. 8000496 - Coupon copy protection

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idiyas.com
as of
12/23/2025
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