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Top 50 Key Players companies in Glutamine
by Most Patent Citation in the United States in 2021

The Glutamine top 50 is Discovery PatSnap’ annual ranking of the top 50 Most Patent Citation Glutamine Key Players in the United States. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2021, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.
Glutamine (symbol Gln or Q) is an α-amino acid that is used in the biosynthesis of proteins. Its side chain is similar to that of glutamic acid, except the carboxylic acid group is replaced by an amide. It is classified as a charge-neutral, polar amino acid. It is non-essential and conditionally essential in humans, meaning the body can usually synthesize sufficient amounts of it, but in some instances of stress, the body's demand for glutamine increases, and glutamine must be obtained from the diet. It is encoded by the codons CAA and CAG.
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Company Name
Region
Tech Topics
Total
1
patent citation: 1,874
2
patent citation: 630
3
patent citation: 312
4
patent citation: 301
5
Asset management
patent citation: 261
6
Health care,Small molecule,Orphan drug,
...[+2]
patent citation: 243
7
Biomanufacturing,Pharmacy and Therapeutics,Biosimilar,
...[+2]
patent citation: 188
8
patent citation: 171
9
patent citation: 171
10
patent citation: 147
11
patent citation: 143
12
Physical science,Mobile device,Gene delivery,
...[+2]
patent citation: 135
13
Biopharmaceutical,Medicine,Health care,
...[+2]
patent citation: 134
14
Drug discovery,Health care,Pharmacy and Therapeutics,
...[+2]
patent citation: 132
15
National security
patent citation: 112
16
Health care,Medicine,Cystic fibrosis,
...[+2]
patent citation: 110
17
Nutrition,Health care,Infant formula,
...[+2]
patent citation: 105
18
Pharmacy and Therapeutics,Small molecule,Medicine,
...[+2]
patent citation: 99
19
Probiotic,Drug,Health care,
...[+2]
patent citation: 89
20
patent citation: 88
21
patent citation: 88
22
Health care,Clinical trial,Drug,
...[+2]
patent citation: 85
23
patent citation: 85
24
Health care,Biopharmaceutical,Drug,
...[+2]
patent citation: 82
25
Biology,Medicine,Pharmacy and Therapeutics,
...[+2]
patent citation: 75
26
patent citation: 73
27
patent citation: 68
28
Health care,Medicine,Managed care,
...[+2]
patent citation: 64
29
patent citation: 64
30
patent citation: 62
31
patent citation: 60
32
patent citation: 53
33
Medicine,Biopharmaceutical,Methylnaltrexone Bromide,
...[+2]
patent citation: 51
34
patent citation: 50
35
Gastrointestinal agent,Medicine,Pharmaceutical drug,
...[+2]
patent citation: 47
36
patent citation: 46
37
patent citation: 44
38
Mane, Inc.
patent citation: 43
39
RNA interference,Medicine,Health care,
...[+2]
patent citation: 41
40
Medicine,Health care,Pharmacy and Therapeutics,
...[+2]
patent citation: 41
41
patent citation: 41
42
patent citation: 40
43
patent citation: 39
44
patent citation: 39
45
patent citation: 38
46
Sun Ten Laboratories, Inc.
Drug,Food science,Health care,
...[+2]
patent citation: 37
47
patent citation: 37
48
Food products,Fast-moving consumer goods,Food industry,
...[+2]
patent citation: 35
49
Medicine,Health care,Oncology drugs,
...[+2]
patent citation: 34
50
patent citation: 34
Page generation time: Aug 09 2025