Case insensitive JSON reading in C#

JsonExtensions.cs

public static class JsonExtensions
    {
        public static JToken GetPropertyFromPath(this JToken token, string path)
        {
            if (token == null)
            {
                return null;
            }
            string[] pathParts = path.Split(".");
            JToken current = token;
            foreach (string part in pathParts)
            {
                current = current.GetProperty(part);
                if (current == null)
                {
                    return null;
                }
            }
            return current;
        }

        public static JToken GetProperty(this JToken token, string name)
        {
            if (token == null)
            {
                return null;
            }
            var obj = token as JObject;
            JToken match;
            if (obj.TryGetValue(name, StringComparison.OrdinalIgnoreCase, out match))
            {
                return match;
            }
            return null;
        }

        public static int IntValue(this JToken token)
        {
            if (token == null)
            {
                return default(int); ;
            }
            return token.Value<int>();
        }

        public static int IntValue(this JToken token, string path)
        {
            JToken targetToken = token?.GetPropertyFromPath(path);
            return targetToken.IntValue();
        }

        public static DateTime DateTimeValue(this JToken token)
        {
            if (token == null)
            {
                return default(DateTime);
            }
            return token.Value<DateTime>();
        }

        public static DateTime DateTimeValue(this JToken token, string path)
        {
            JToken targetToken = token?.GetPropertyFromPath(path);
            return targetToken.DateTimeValue();
        }

        public static string StringValue(this JToken token)
        {
            if (token == null)
            {
                return default(string);
            }
            return token.Value<string>();
        }

        public static string StringValue(this JToken token, string path)
        {
            JToken targetToken = token?.GetPropertyFromPath(path);
            return targetToken.StringValue();
        }

        public static long LongValue(this JToken token)
        {
            if (token == null)
            {
                return default(long);
            }
            return token.Value<long>();
        }

        public static long LongValue(this JToken token, string path)
        {
            JToken targetToken = token?.GetPropertyFromPath(path);
            return targetToken.LongValue();
        }

        public static double DoubleValue(this JToken token)
        {
            if (token == null)
            {
                return default(double);
            }
            return token.Value<double>();
        }

        public static double DoubleValue(this JToken token, string path)
        {
            JToken targetToken = token?.GetPropertyFromPath(path);
            return targetToken.DoubleValue();
        }
    }