Growing community of inventors

Ledyard, CT, United States of America

Richard S Lehner

Average Co-Inventor Count = 3.71

ph-index = 2

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 = 74

Richard S LehnerBrian Thomas O'Neill (1 patent)Richard S LehnerTimothy Norris (1 patent)Richard S LehnerFrank R Busch (1 patent)Richard S LehnerPhilip D Hammen (1 patent)Richard S LehnerConstantine Sklavounos (1 patent)Richard S LehnerJoanna Teresa Negri (1 patent)Richard S LehnerJohn L Tucker (1 patent)Richard S LehnerDinos P Santafianos (1 patent)Richard S LehnerKerry P Mahon (1 patent)Richard S LehnerLulin Wei (1 patent)Richard S LehnerRichard S Lehner (3 patents)Brian Thomas O'NeillBrian Thomas O'Neill (54 patents)Timothy NorrisTimothy Norris (19 patents)Frank R BuschFrank R Busch (16 patents)Philip D HammenPhilip D Hammen (12 patents)Constantine SklavounosConstantine Sklavounos (11 patents)Joanna Teresa NegriJoanna Teresa Negri (4 patents)John L TuckerJohn L Tucker (3 patents)Dinos P SantafianosDinos P Santafianos (1 patent)Kerry P MahonKerry P Mahon (1 patent)Lulin WeiLulin Wei (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Pfizer Corporation (2 from 4,455 patents)

2. Other (1 from 832,880 patents)


3 patents:

1. 6825327 - Process for preparing 4″-substituted-9-deoxo-9a-aza-9a-homoerythromycin a derivatives

2. 6476040 - Processes and intermediates for preparing anti-cancer compounds

3. 5380860 - Preparation of beta-ketoesters useful in preparing quinolone antibiotics

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1/3/2026
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